Home | Current Research Projects

Current Research Projects

Click here for details of Dr Singh’s research interests

Dr Singh is a Clinical Associate Professor of Surgery and a Primary Supervisor for the University of Sydney Postgraduate Researchers (HDR/ Higher Degree by Research) in Surgery.

Prof Singh is currently supervising:

5 (Five)

Masters and Doctoral (PhD) candidates.

If you are considering a research degree in ENT (Otolaryngology, Head and Neck Surgery) through the University of Sydney, we recommend you contact us to meet with Prof Singh. The University of Sydney is Australia’s oldest and largest medical school. We have dedicated research funding available. You will be supported by the research facilities of The University of Sydney and the clinical resources of The Western Sydney LHD, including Westmead Hospital, Australia’s largest healthcare campus. Prof Singh has numerous research topics available for motivated researchers. Publication of your results is our priority.

Research focus areas

Prof Singh’s two key focus areas of research are:

  1. Computational Fluid Dynamics (CFD) in the nose and sinuses
  2. Artificial Intelligence (AI) in ENT

Please click on the pictures for an enlarged view

Clinical and Biomedical Engineering in the Human Nose

Current Research Projects

Click here to download a copy of Prof Singh's Thesis, for the award of Master of Surgery from The University of Sydney, entitled "Allergen Specific Cytokine Production by Cells Derived From Human Nasal Polyps"

Dr Singh's Thesis, for the award of Master of Surgery from The University of Sydney, entitled "Allergen Specific Cytokine Production by Cells Derived From Human Nasal Polyps

Click here to see Prof Singh's textbook, Clinical and Biomedical Engineering in the Human Nose

Recent Scientific publications

  1. Taylor A, Habib AR, Kumar A, Wong E, Hasan Z, Singh N. An artificial intelligence algorithm for the classification of sphenoid sinus pneumatisation on sinus computed tomography scans. Clin. Otolaryngol. (2023) https://doi.org/10.1111/coa.14088
  2. Desrosiers M, Diamant Z, Castelnuovo P, Hellings PW, Han JK, Peters AT, Silver J, Smith SG, Fuller A, Sousa AR, Chan RH, Gevaert P; SYNAPSE study investigators (Includes Singh N). Sustained efficacy of mepolizumab in patients with severe chronic rhinosinusitis with nasal polyps: SYNAPSE 24-week treatment-free follow-up. Int Forum Allergy Rhinol. 2024 Jan;14(1):18-31. https://doi.org/10.1002/alr.23219
  3. Hasan Z, Key S, Lee M, Chen F, Aweidah L, Esmaili A, Sacks R, Singh N. A Deep Learning Algorithm to Identify Anatomical Landmarks on Computed Tomography of the Temporal Bone. J Int Adv Otol 2023; 19: 360-367. https://doi.org/10.5152/iao.2023.231073
  4. Khatri H, Salati H, Inthavong K, Singh N. Modelling the effects of post-FESS middle turbinate synechiae on sinonasal physiology: A computational fluid dynamics study. Auris Nasus Larynx. https://doi.org/10.1016/j.anl.2023.04.003
  5. Habib AR, Xu Y, Bock K, Mohanty S, Sederholm T, Dodhia R, Lavista Ferres J, Weeks WB, Perry C, Sacks R, Singh N, Evaluating the generalizability of deep learning image classification algorithms to detect middle ear disease using otoscopy. Nature Scientific Reports. https://doi.org/10.1038/s41598-023-31921-0
  6. Pezato R, Stamm AC, Douglas R, Han JK, Chen PG, Neto CDP, Tepedino MS, Singh N, Balsalobre L, ... Patel Z, Thamboo A. Nasal disease with polyps: Need for clarity. Int Forum Allergy Rh (2023). https://doi.org/10.1002/alr.23150
  7. Habib AR, Perry C, Crossland G, Patel H, Kong K, Whitfield B, North H, Walton J, Da Cruz M, Suruliraj A, Smith M, Harris R, Hasan Z, Gunaratne DA, Sacks R, Singh N. Inter-rater agreement between 13 otolaryngologists to diagnose otitis media in aboriginal and Torres Strait islander children using a telehealth approach. International Journal of Pediatric Otorhinolaryngology, 2023, https://doi.org/10.1016/j.ijporl.2023.111494
  8. Fokkens W, Trigg A, Stella E, Chan R, Diamant Z, Hopkins C, Howarth P, Lund, V, Mayer B, Sousa A, Yancey S, Tabberer M, SYNAPSE study investigators (Includes Singh N). Mepolizumab improvements in health-related quality of life and disease symptoms in a patient population with very severe chronic rhinosinusitis with nasal polyps: psychometric and efficacy analyses from the SYNAPSE study. J. Patient-Rep. Outcomes 7, 4 (2023). https://doi.org/10.1186/s41687-023-00543-5
  9. Hasan Z, Lee M, Chen F, Key S, Habib AR, Aweidah L, Sacks R, Singh N. A computer vision algorithm to classify pneumatization of the mastoid process on temporal bone CT scans. J Int Adv Otol. 2023; 19(3):217-222. https://doi.org/10.5152/iao.2023.22958
  10. Kleven M, Singh N, Messina JC, Djupesland PG, Inthavong K. Development of computational fluid dynamics methodology for characterization of exhalation delivery system performance in a nasal airway with Draf-III surgery. Journal of Aerosol Science. 2022, 106121, ISSN 0021-8502, https://doi.org/10.1016/j.jaerosci.2022.106121
  11. Senanayake P, Warfield-McAlpine P, Salati H, Bradshaw K, Wong E, Inthavong K, Singh N. The Impact of Adhesions on Nasal Airflow: A Quantitative Analysis Using Computational Fluid Dynamics. American Journal of Rhinology & Allergy. 2022;0(0). https://doi.org/10.1177/19458924221137982
  12. Bradshaw, K, McAlpine, P, Vahaji, S, Emmerling, J, Salati, H, Sacks, R, Fletcher, DF, Singh, N, Inthavong, K. New insights into the breathing physiology from transient respiratory nasal simulation. Phys Fluids 34, 115103 (2022). https://doi.org/10.1063/5.0112223
  13. Vara Almirall B, Inthavong K, Bradshaw K, Singh N, Johnson A, Storey P, Salati H. Flow Patterns and Particle Residence Times in the Oral Cavity during Inhaled Drug Delivery. Pharmaceuticals. 2022; 15(10):1259. https://doi.org/10.3390/ph15101259
  14. Tjahjono, R., Salati, H., Inthavong, K. & Singh, N. Correlation of Nasal Mucosal Temperature and Nasal Patency—A Computational Fluid Dynamics Study. Laryngoscope (2022) http://doi.org/10.1002/lary.30327
  15. Salati H, Singh N, Khamooshi M, Vahaji S, Fletcher DF, Inthavong K. Nasal Irrigation Delivery in Three Post-FESS Models From a Squeeze-bottle Using CFD. Pharmaceut Res 1–16 (2022). https://dx.doi.org/10.1007/s11095-022-03375-y
  16. Khatri H, Wong E, Inthavong K, Sacks R, Singh N. Peri-operative measures to prevent middle turbinate lateralisation and adhesion formation in endoscopic sinus surgery—a systematic review of the literature. Aust J Otolaryngol 2022;5:20. http://doi.org/10.21037/ajo-22-6
  17. Senanayake P, Wong E, McBride K, Singh N. Efficacy of Vidian Neurectomy and Posterior Nasal Neurectomy in the Management of Nonallergic Rhinitis: A Systematic Review. American Journal of Rhinology & Allergy 2022 https://dx.doi.org/10.1177/19458924221105933
  18. Habib A, Kajbafzadeh M, Hasan Z, Wong E, Gunasekera H, Perry C, Sacks R, Kumar A, Singh N. Artificial intelligence to classify ear disease from otoscopy: A systematic review and meta‐analysis. Clin Otolaryngol (2022) http://doi.org/10.1111/coa.13925
  19. Hasan Z, Key S, Habib A, Wong E, Aweidah L, Kumar A, Sacks R, Singh N. Convolutional Neural Networks in ENT Radiology: Systematic Review of the Literature. Annals of Otology, Rhinology & Laryngology 2022 https://dx.doi.org/10.1177/00034894221095899
  20. Habib A, Crossland G, Patel H, Wong E, Kong K, Gunasekera H, Richards B, Caffery L, Perry C, Sacks R, Kumar A, Singh N. An Artificial Intelligence Computer-vision Algorithm to Triage Otoscopic Images From Australian Aboriginal and Torres Strait Islander Children, Otology & Neurotology: April 2022 - Volume 43 - Issue 4 - p 481-488, http://doi.org/10.1097/MAO.0000000000003484
  21. Javadiyan S, Germein KC, Cooksley CM, Ramezanpour M, Singh N, Wormald PJ, Vreugde S, Psaltis AJ. In vitro safety and anti-bacterial efficacy assessment of acriflavine. Allergy 2022. https://dx.doi.org/10.1111/all.15289
  22. Bhatia D, Bhatia K, Saluja T, Saluja A, Thind A, Bamra A, Singh G, Singh N, Clezy K, Dempsey K, Hudson B, Jain S. Under-mask beard covers achieve an adequate seal with tight-fitting disposable respirators using quantitative fit testing. J Hosp Infect (2022) http://doi.org/10.1016/j.jhin.2022.05.015
  23. Taylor A, North H, Singh N, Fagan P. From wipeout to drill out: a history of exostosis management and Australian surfing. Medical Journal of Australia 2022 https://dx.doi.org/10.5694/mja2.51496
  24. Tjahjono R & Singh N. Correlation between nasal mucosal temperature change and the perception of nasal patency: a literature review. J Laryngology Otology 135, 104–109 (2021). https://doi.org/10.1017/S0022215121000487
  25. Shrestha K, Van Strien J, Shang Y, Fletcher DF, Petersen P, Vreugde S, Wormald PJ, Singh N, Inthavong K. Effect of breathing profiles on nebuliser drug delivery targeting the paranasal sinuses in a post-operative nasal cavity. J Aerosol Sci 105913 (2021) http://doi.org/10.1016/j.jaerosci.2021.105913
  26. Bigdeli R, Jabbour J, Noor A, Bradshaw K, North H, Singh N, Sritharan N. Cotton bud foreign body associated necrotising otitis externa – A case series and literature review. Otolaryngology Case Reports 23, 100418 (2022). http://doi.org/10.1016/j.xocr.2022.100418
  27. Inthavong, K, Shang Y, DelGaudio JM, Wise SK, Edwards TS, Bradshaw K, Wong E, Smith M, Singh N. Inhalation and deposition of spherical and pollen particles after middle turbinate resection in a human nasal cavity. Resp Physiol Neurobi 103769 (2021) http://doi.org/10.1016/j.resp.2021.103769
  28. Vahaji S, Shang Y, Zhang Y, Wong E, Rezk A, Yeo L, Vreugde S, Wormald PJ, Singh N, Inthavong K. Optimising Aerosol Delivery for Maxillary Sinus Deposition in a Post-FESS Sinonasal Cavities. Aerosol and Air Quality Research 21: 210098. https://doi.org/10.4209/aaqr.210098
  29. Shrestha, K., Salati, H., Fletcher, D., Singh, N. & Inthavong, K. Effects of head tilt on squeeze-bottle nasal irrigation - a computational fluid dynamics study. J Biomech 110490 (2021) http://doi.org/10.1016/j.jbiomech.2021.110490
  30. Singh, NP; Inthavong, K Can computational fluid dynamic models help us in the treatment of chronic rhinosinusitis?, Current Opinion in Otolaryngology & Head and Neck Surgery: February 2021 - Volume 29 - Issue 1 - p 21-26. http://doi.org/10.1097/MOO.0000000000000682
  31. Shrestha K, Wong E, Salati H, Fletcher DF, Singh N, Inthavong K. Liquid volume and squeeze force effects on nasal irrigation using Volume of Fluid modelling Experimental and Computational Multiphase Flow 2021 https://dx.doi.org/10.1007/s42757-021-0123-5
  32. Strien, JV, Shrestha K, Gabriel S, Lappas P, Fletcher DF, Singh N, Inthavong K. Pressure distribution and flow dynamics in a nasal airway using a scale resolving simulation. Phys Fluids 33, 011907 (2021). https://dx.doi.org/10.1063/5.0036095
  33. Shute, W. G., Wong, E. H., Agar, N. J. M. & Singh, N. Unilateral choanal atresia first diagnosed in adulthood and repaired via endoscopic posterior septectomy—a case series and review of the literature. Australian J Otolaryngology 4, 2–2 (2021). https://dx.doi.org/10.21037/ajo-20-63
  34. Senanayake, P, Salati H, Wong E, Bradshaw K, Shang Y, Singh N, Inthavong K. The impact of nasal adhesions on airflow and mucosal cooling – A computational fluid dynamics analysis. Resp Physiol Neurobi 293, 103719 (2021). https://dx.doi.org/10.1016/j.resp.2021.103719
  35. Shang Y, Inthavong K, Qiu D, Singh N, He F, Tu J (2021) Prediction of nasal spray drug absorption influenced by mucociliary clearance. PLoS ONE 16(1): e0246007. https://doi.org/10.1371/journal.pone.0246007
  36. Han JK, Bachert C, Fokkens W, Desrosiers M, Wagenmann M, Lee SE, Smith SG, Martin N, Mayer B, Yancey SW, Sousa AR, Chan R, Hopkins C; SYNAPSE study investigators (Includes Singh N). Mepolizumab for chronic rhinosinusitis with nasal polyps (SYNAPSE): a randomised, double-blind, placebo-controlled, phase 3 trial. Lancet Respir Med. 2021 Apr 16:S2213-2600(21)00097-7. http://doi.org/10.1016/S2213-2600(21)00097-7
  37. Ahmadzada, S., Vasan, K., Sritharan, N., Singh, N., Smith, M., Hull, I., Riffat, F. (2020). Utility of narrowband imaging in the diagnosis of laryngeal leukoplakia: Systematic review and meta‐analysis Head & Neck. https://dx.doi.org/10.1002/hed.26428
  38. Wong E, Cheng AT, Aggarwala S, Cope D, Jessica N, Duvnjak M, Singh N. Acute food bolus ingestion: ten-year experience at a tertiary pediatric hospital. Australian J Otolaryngology 3, 1–1 (2020). https://dx.doi.org/10.21037/ajo.2019.12.01
  39. Shrestha K, Van Strien J, Singh N, Inthavong K (2020) Primary break-up and atomization characteristics of a nasal spray. PLoS ONE 15(8): e0236063. https://doi.org/10.1371/journal.pone.0236063
  40. Wong E H, Noussair M, Hasan Z, Duvnjak M, Singh N. Physiological changes in the size of the septal swell body correlate with changes in inferior turbinate size. The Journal of Laryngology & Otology 2020 https://dx.doi.org/10.1017/s0022215120000675
  41. Taylor, A., Vasan, K., Wong, E., Singh, N., Smith, M., Riffat, F., Sritharan, N. (2020). Black Turbinate sign: MRI finding in acute invasive fungal sinusitis. Otolaryngology Case Reports https://dx.doi.org/10.1016/j.xocr.2020.100222
  42. Parmar, P, A R Habib, D Mendis, A Daniel, M Duvnjak, J Ho, M Smith, D Roshan, E Wong, Singh N. 2020. An Artificial Intelligence Algorithm That Identifies Middle Turbinate Pneumatisation (Concha Bullosa) on Sinus Computed Tomography Scans. The Journal of Laryngology and Otology, 1–4. http://doi.org/10.1017/s0022215120000444
  43. Ahmadzada, S., Tseros, E., Sritharan, N., Singh, N., Smith, M., Palme, C., Riffat, F. (2020). The value of narrowband imaging using the Ni classification in the diagnosis of laryngeal cancer Laryngoscope Investigative Otolaryngology https://dx.doi.org/10.1002/lio2.414
  44. Ho, J., Rom, D., Wong, E., Singh, N. (2020). A case of acute unilateral maxillary atelectasis following endoscopic pituitary surgery. International Journal of Surgery Case Reports https://dx.doi.org/10.1016/j.ijscr.2019.12.041
  45. Wong E, Deboever N, Sritharan N, Singh N. 2020. Laryngopharyngeal Reflux is Associated with Nasal Septal Deviation. (Eur J Rhinol Allergy 2020; 3: 1-3). http://doi.org/10.5152/ejra.2020.235
  46. Ho J, Wong E, Singh N. 2020 Bilateral Chronic Maxillary Atelectasis with a Unilateral Accessory Ostium. Eur J Rhinol Allergy 2020; 3(1): 23-5. http://doi.org/10.5152/ejra.2020.227
  47. Habib, A R, E Wong, R Sacks, Singh N. 2020. Artificial Intelligence to Detect Tympanic Membrane Perforations. The Journal of Laryngology and Otology, 1–5. http://doi.org/10.1017/s0022215120000717
  48. Wong, E, Singh N. 2020. Isolated Sphenoid Allergic Fungal Sinusitis Causing Bilateral Blindness. Otolaryngology Case Reports, 100153. http://doi.org/10.1016/j.xocr.2020.100153
  49. Wong, E, Deboever N, Chong J, Sritharan N, Singh N. 2020. Isolated Topical Decongestion of the Nasal Septum and Swell Body Is Effective in Improving Nasal Airflow. American Journal of Rhinology & Allergy, http://doi.org/10.1177/1945892420902913
  50. Smith, M, Wong E, Ho J, Tjahjono R, Coleman H, Singh N, Sritharan N. 2020. Ectopic Sinonasal Craniopharyngioma Arising From the Anterior Ethmoid Sinus – Case Report and Literature Review. Otolaryngology Case Reports 15: 100151. http://doi.org/10.1016/j.xocr.2020.100151
  51. Inthavong K, Shang Y, Wong E, Singh N. Characterization of nasal irrigation flow from a squeeze bottle using computational fluid dynamics. Int Forum Allergy Rhinol. 2019 Nov 6. http://doi.org/10.1002/alr.22476
  52. Singhal, P., Singh, N., Samra, S., Coleman, H. (2020). Olfactory neuroblastoma with divergent differentiation Pathology 52(), S86-S87. https://dx.doi.org/10.1016/j.pathol.2020.01.291
  53. Inthavong, K., Das, P., Singh, N., & Sznitman, J. (2019). In silico approaches to respiratory nasal flows: A review. Journal of Biomechanics, 97, 109434. http://doi.org/10.1016/j.jbiomech.2019.109434
  54. Wong, E., Inthavong, K., & Singh, N. (2019). Comment on the European position paper on diagnostic tools in rhinology - computational fluid dynamics. Rhinology, 0(0), 0–0. http://doi.org/10.4193/Rhin19.269
  55. Huang, R., Nedanoski, A., Fletcher, D. F., Singh, N., Schmid, J., Young, P. M., et al. (2019). An automated segmentation framework for nasal computational fluid dynamics analysis in computed tomography. Computers in Biology and Medicine,115,103505. http://doi.org/10.1016/j.compbiomed.2019.103505
  56. Huang, J, A R Habib, D Mendis, J Chong, M Smith, M Duvnjak, C Chiu, Singh N, E Wong. 2019. An Artificial Intelligence Algorithm That Differentiates Anterior Ethmoidal Artery Location on Sinus Computed Tomography Scans. The Journal of Laryngology and Otology, 1–4. http://doi.org/10.1017/s0022215119002536
  57. Smith, M., Wong, E., Ahmadi, N., Singh, N. (2019). A nose out of joint: first reported case of prison-acquired marijuana-based rhinolith. BMJ Case Reports, 12, e231989. http://doi.org/10.1136/bcr-2019-231989
  58. Ku D, Vasan K, Wong E, Tseros E, Singh N. Moffett's Solution Causes Significantly Greater Postoperative Throat Pain Compared to Cophenylcaine in Sinonasal Surgery. International Journal of Otolaryngology. July 2019. http://doi.org/10.1155/2019/3738647
  59. Andrews D, Wong EH, Ho J, Singh N. Chondro-Osseous Respiratory Epithelial Adenomatoid Hamartoma (COREAH): Case Report and Literature Review. Case Reports in Otolaryngology. July 2019. http://doi.org/10.1155/2019/5247091
  60. Wong EH, Choroomi S, Palme CE, Singh N. Isolated primary maxillary sinus esthesioneuroblastoma presenting as idiopathic syndrome of inappropriate antidiuretic hormone. BMJ Case Reports. May 2019. http://doi.org/10.1136/bcr-2018-228666
  61. Wong EH, Cheng AT, Aggarwala S, Chong J, Duvnjak M, Azimi F, Cope D, Singh N. Paediatric fish bone ingestion: a 10-year analysis at a tertiary pediatric hospital. Australian Journal of Otolaryngology. May 2019. 2:16-16. http://doi.org/10.21037/ajo.2019.05.03
  62. Wong EH, Al-Eitri A, Chong J, Brown SJ, Dexter MAJ, Singh N. An alternative technique for pituitary tumour removal: Sequential endoscopic-microscopic pituitary procedure (SEMPP). Journal of Clinical Neuroscience. 64, 94-97. April 2019. http://doi.org/10.1016/j.jocn.2019.03.059
  63. Karunaratne Y, Gunaratne DA, Floros P, Wong EH, Singh N. Frontal Sinus Osteoma: From Direct Excision to Endoscopic Removal. The Journal of craniofacial surgery. April 2019 . http://doi.org/10.1097/SCS.0000000000005371
  64. Ansari UH, Wong EH, Smith M, Singh N, Palme CE, Smith M, Riffat F. Validity of narrow band imaging in the detection of oral and oropharyngeal malignant lesions: A systematic review and meta-analysis. Head & Neck 41(7). March 2019. http://doi.org/10.1002/hed.25724
  65. Ho J, Wong E, Tseros E, Gunaratne D, Singh N. Chronic maxillary atelectasis (including silent sinus syndrome) can present bilaterally. JLO. Feb 2019. http://doi.org/10.1017/S0022215119000252
  66. Singh N, Chong J, Ho J, Jayachandra S, Cope D, Azimi F, Eslick G, Wong E. Predictive Factors Associated With Spontaneous Passage Of Coins: A Ten-Year Analysis Of Paediatric Coin Ingestion In Australia. Int J Paed Otolaryngol. 2018 Oct;113:266-271. http://doi.org/10.1016/j.ijporl.2018.08.010
  67. Singh N, Wong E, Huang J, Riffat F. Trans-Frontal Five-Fluorouracil: A novel technique for the application of adjuvant topical chemotherapeutic agents in sinonasal adenocarcinoma. BMJ Case Reports. October, 2018. http://doi.org/10.1136/bcr-2018-226234
  68. Sekhar V, Wong E, Elhassan H, Singh N. Moffett's muted mules: The science of laryngology in the art of war. JLO. 2018; October. http://doi.org/10.1017/S0022215118001950
  69. Burgos Olmos M, Sanmiguel-Rojas E, Singh N, Esteban-Ortega F. DigBody®: a new 3D modeling tool for nasal virtual surgery. Comput Biol Med. 2018. 98, 118-125. http://doi.org/10.1016/j.compbiomed.2018.05.016
  70. Ho J, North H, Singh N. 40 Years of ‘Waltzing Matilda’: The history of the multichannel cochlear implant. Med J Aust. Dec 2018. http://doi.org/10.5694/mja18.00365
  71. Wong E, Singh N. An improved method for temporary suture medialisation of the middle turbinates following endoscopic sinus surgery. Int J Otolaryngol. 2018 Sep 2;2018:9093545. http://doi.org/10.1155/2018/9093545
  72. Lau J, Elhassan H, Singh N. History of Intranasal Splints. JLO. 2018 Mar;132(3):198-201. http://doi.org/10.1017/s0022215118000142
  73. Tseros E, Riffat F, Palme C, Coleman H, Singh N. Neville Wran’s Voice: How the NSW Premier’s teflon-coated vocal cords came unstuck. Med J Aust 2017; 207 (11): 468-470. http://doi.org/10.5694/mja17.00198
  74. Gunaratne, D., Hasan, Z., Floros, P., Singh, N. Bilateral stage I chronic maxillary atelectasis. Int J Surg Case Rep. 2016, 26, 53-56. http://doi.org/10.1016/j.ijscr.2016.07.014
  75. Gunaratne D, Singh N. Endoscopic pedicled nasoseptal flap repair of spontaneous sphenoid sinus cerebrospinal fluid leaks. BMJ Case Rep 2015. 2015, 1-4. http://doi.org/10.1136/bcr-2014-209157
  76. Morris C, Ng T, Kevin P, Singh N. IgG4-related disease isolated to the nasal cavity: a rare cause of nasal obstruction. Journal of Laryngology and Otology. 2015 Jan; 129: S57-59. http://doi.org/10.1017/s0022215114001911
  77. Singh N, Roberts D. An Inexpensive Blue Filter for Fluorescein-Assisted Repair of Cerebrospinal Fluid Rhinorrhea. Laryngoscope. 2014 May; 124(5): 1103-5. http://doi.org/10.1002/lary.24502
  78. Singh N, Walker RJ, Cowan F, Davidson C, Roberts D. Retrograde air escape via the nasolacrimal system: A previously unrecognised complication of continuous positive airway pressure in the management of obstructive sleep apnea. Ann Otol Rhinol Laryngol. 2014 May; 123(5): 321-4. http://doi.org/10.1177/0003489414525924
  79. Faith, A*., Singh, N*., Farooque, S., Dimeloe, S., Richards, D., Lu, H., Roberts, D., Chevretton, E., Lee, T., Corrigan, C., Hawrylowicz, C. (2012), T cells producing the anti-inflammatory cytokine IL-10 regulate allergen-specific Th2 responses in human airways. Allergy. 67(8), 1007-1013. http://doi.org/10.1111/j.1398-9995.2012.02852.x *Note: NS and AF contributed equally to the work (see publication manuscript)
  80. Singh N, Faith A, Hawrylowicz C, Roberts DN, Corrigan CJ. Allergen-Specific Cytokine Production by Human Nasal Polyps. Otolaryngology--Head and Neck Surgery 145 (2 suppl), P116-P116. http://doi.org/10.1177/0194599811416318a238
  81. Greaney L, Singh N, Roberts DN. Surgical Management of Rhinophyma. Clinical Otolaryngology (2010), 35, 147–163. http://doi.org/10.1111/j.1749-4486.2010.02094.x
  82. Faith, A., Singh, N., Chevretton, E., Roberts, D., Lee, T., Corrigan, C., Hawrylowicz, C. (2009), Counter regulation of the high affinity IgE receptor, FcepsilonRI, on human airway dendritic cells by IL-4 and IL-10. Allergy. 64(11), 1602-1607. http://doi.org/10.1111/j.1398-9995.2009.02060.x
  83. Singh N, Rizk JG. Oesophageal perforation following the ingestion of over-the-counter ibuprofen capsules. Journal of Laryngology and Otology (2008), 122, 864–866. http://doi.org/10.1017/s0022215108002582
  84. Singh N, Fung A, Cole IE. Innominate artery haemorrhage following tracheostomy. Otolaryngology, Head and Neck Surgery (2007) 136, S68-S72. http://doi.org/10.1016/j.otohns.2006.10.042

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