Dr Richard Singer
- Christiadi D, Mashford B, Walters G, Karpe K, Kennard A, Singer R, et al. 1440 Pathomics Pipeline for Medical Kidney Biopsy with KidneyVision.
Laboratory Investigation. 2026 Mar;106(3):105736.
https://doi.org/10.1016/j.labinv.2025.105736 - Sellier-Leclerc AL, Magen D, Shasha-Lavsky H, Simkova E, Devresse A, Guebre-Egziabher F, et al. Efficacy and Safety of Lumasiran for Advanced
Primary Hyperoxaluria Type 1: 24-Month Follow-Up of the Phase 3 Illuminate- C Trial. American Journal of Kidney Diseases. 2025 Mar.
https://doi.org/10.1053/j.ajkd.2025.01.016 - Singer R, Huang H. Weight change in chronic kidney disease: Association with mortality and kidney function. Obesity Science & Practice. 2023
Nov;10(1).
https://doi.org/10.1002/osp4.723 - Michael M, Groothoff JW, Shasha-Lavsky H, Lieske JC, Frishberg Y, Simkova E, et al. Lumasiran for Advanced Primary Hyperoxaluria Type 1: Phase 3
ILLUMINATE-C Trial. American Journal of Kidney Diseases. 2023 Feb;81(2):145-155.e1.
https://doi.org/10.1053/j.ajkd.2022.05.012 - Groothoff J, Michael M, Shasha-Lavsky H, Lieske J, Frishberg Y, Simkova E, et al. FC070: Lumasiran for Patients with Primary Hyperoxaluria Type 1 with
Impaired Kidney Function: Data from the 6-Month Analysis of the Phase 3 Illuminate-C Trial. Nephrology Dialysis Transplantation. 2022
May;37(Supplement_3).
https://doi.org/10.1093/ndt/gfac112.002 - Chuah A, Walters G, Christiadi D, Karpe K, Kennard A, Singer R, et al. Machine Learning Improves Upon Clinicians’ Prediction of End Stage Kidney
Disease. Frontiers in Medicine. 2022 Mar;9.
https://doi.org/10.3389/fmed.2022.837232 - Wajih Z, Singer R. Successful treatment of calciphylaxis with vitamin K in a patient on haemodialysis. Clinical Kidney Journal. 2021 Oct;15(2):354–6.
https://doi.org/10.1093/ckj/sfab209 - Sivam S, Singer R, Yee BJ. Does CPAP Improve Chronic Kidney Disease in OSA? Chest. 2021 May;159(5):1717–8.
https://doi.org/10.1016/j.chest.2021.01.014 - Halpin MR, Chen B, Singer RF. Efficacy, Safety, and Calcium Balance of an Accelerated Citrate Anticoagulated Membrane-Based Plasma Exchange
Algorithm. Blood Purification. 2021 May;51(1):70–4.
https://doi.org/10.1159/000515827 - Stefani M, Singer RF, Roberts DM. How to adjust drug doses in chronic kidney disease. Australian Prescriber. 2019 Oct;42(5):163.
https://doi.org/10.18773/austprescr.2019.054 - Christiadi D, Singer RF, Roberts DM. Successful Treatment of PD Peritonitis Due to Brevundimonas vesicularis. Peritoneal Dialysis International: Journal
of the International Society for Peritoneal Dialysis. 2018 Sep;38(5):379–81.
https://doi.org/10.3747/pdi.2018.00014 - Christiadi D, Mercado C, Singer R. Regional citrate anticoagulation in membrane based plasma exchange: Safety, efficacy and effect on calcium
balance. Nephrology. 2018 Jul;23(8):744–7.
https://doi.org/10.1111/nep.13088 - Singer R, Chacko B, Talaulikar G, Karpe K, Walters G. Placebo-controlled, randomized clinical trial of high-dose cholecalciferol in renal dialysis patients:
effect on muscle strength and quality of life. Clinical Kidney Journal. 2018 Jun.
https://doi.org/10.1093/ckj/sfy039 - Christiadi D, Singer RF. Calciphylaxis in a dialysis patient successfully treated with high-dose vitamin K supplementation. Clinical Kidney Journal. 2017 Nov.
https://doi.org/10.1093/ckj/sfx126 - Sampson AL, Singer RF, Walters GD. Uric acid lowering therapies for preventing or delaying the progression of chronic kidney disease. Cochrane
Database of Systematic Reviews. 2017 Oct;2017(10).
https://doi.org/10.1002/14651858.cd009460.pub2 - Kennard A, Singer R. Lipid lowering in renal disease. Australian Prescriber. 2017 Aug;40(4):141–6.
https://doi.org/10.18773/austprescr.2017.047 - Huang HC, Walters G, Talaulikar G, Figurski D, Carroll A, Hurwitz M, et al. Sleep apnea prevalence in chronic kidney disease – association with total
body water and symptoms. BMC Nephrology. 2017 Apr;18(1).
https://doi.org/10.1186/s12882-017-0544-3 - Singer RF, Williams O, Mercado C, Chen B, Talaulikar G, Walters G, et al. Regional Citrate Anticoagulation in Hemodialysis: An Observational Study of
Safety, Efficacy, and Effect on Calcium Balance during Routine Care. Canadian Journal of Kidney Health and Disease. 2016 Jan;3.
https://doi.org/10.1186/s40697-016-0113-x - Singer RF. Vitamin D in dialysis: defining deficiency and rationale for
supplementation. Semin Dial. 2013;26(1):40–6. - Roberts DM, Singer RF. Lead Mobilization Study and the Clearance of Intravenous CaNa2EDTA in a Patient With End-Stage Renal Failure on
Hemodialysis. The Journal of Clinical Pharmacology. 2012;52:110–3. - Roberts DM, Fernando G, Singer RF, Kennedy KJ, Lawrence M, Talaulikar G. Antibiotic stability in commercial peritoneal dialysis solutions: influence of
formulation, storage and duration. Nephrology Dialysis Transplantation. 2011 Feb;26(10):3344–9.
https://doi.org/10.1093/ndt/gfr005 - Singer RF. Vitamin C supplementation in kidney failure: effect on uraemic symptoms. Nephrology Dialysis Transplantation. 2011;26:614–20.
- Singer RF. Long-term high-dose cholecalciferol in patients with heavy proteinuria. NDT Plus. 2011;4:310–2.
- Roberts DM, Singer RF. Management of renal bone disease. Australian Prescriber. 2010 Apr;33(2):34–7.
https://doi.org/10.18773/austprescr.2010.016 - Roberts DM, Singer RF. Management of renal bone disease. Australian Prescriber. 2010;33:34–7.
- Ferrari P, Singer R, Agarwal A, Hurn A, Townsend MA, Chubb P. Serum phosphate is an important determinant of corrected serum calcium in end
stage kidney disease. Nephrology. 2009;14:383–8. - Clayton P, Singer R. 25-Hydroxyvitamin D levels in prevalent Australian dialysis patients. Nephrology. 2009;14:554–9.
- Singer R, Hc R, G C, H K, P F. High prevalence of ascorbate deficiency in an Australian peritoneal dialysis population. Nephrology. 2008;13:17–22.
- Agarwal A, Ferrari P, MacMillan J, Singer R. Venlafaxine to treat severe hypotension. Nephrology. 2007;12:622.
- Singer R, Wood Baker R. Review of the effect of the dosing interval for inhaled corticosteroids in asthma control. Internal medicine journal.
2002;32:72–8.
Associate Professor Carol Huang
Peer-reviewed journal article:
Huang H-C C, Hillman DR, McArdle N. Control of OSA during automatic CPAP pressure titration in a clinical case series: predictors and accuracy of device download data. Sleep 2012; 35(9): 1277-83
Delaney LJ, Van Haren F, Currie M, Huang H-C C, Lopez V. Sleep monitoring techniques within intensive care. Int J Nurs Clin Pract 2015, 2:114-9
Huang H-C, Walters G, Talaulikar G, Figurski D, Carroll A, Hurwitz M, Karpe K, Singer R. Sleep apnea prevalence in chronic kidney disease. BMC Nephrology 2017; 18:125.
Delaney LJ, Currie MJ, Huang H-C C, Lopez V, Litton E, Van Haren F. The nocturnal acoustical intensity of the intensive care environment: an observational study. J Intensive Care 2017; 5:41
Delaney LJ, Currie MJ, Huang H-C C, Litton E, Wibrow B, Lopez V, Van Haren F. Investigating the application of motion accelerometers as a sleep monitoring technique and the clinical burden of the intensive care environment on sleep quality: study protocol for a prospective observation study in Australia. BMJ Open 2018; 8: e019704.
Delaney, L.J., Currie, M.J., Huang, H-C.C., Lopez, V., Van Haren, F. They can rest at home: An observational study of patients’ quality of sleep in an Australian hospital BMC Health Services Research 2018, 18 (1): 524.
Brightman L, Huang H-C C, Dugdale P. Determining patient attendance, access to interventions and clinical outcomes in a publicly funded obesity programme: results from the Canberra Obesity Management Service. Clinical Obesity 2019; 9 (4): e12325.
Lewis, E, Huang, H-C C, Hassmén, P, Welvaert M, Pumpa KL. Adding telephone and text support to an obesity management program improves behavioural adherence and clinical outcomes. A randomized controlled crossover trial. Int.J. Behav. Med. 2019. https://doi.org/10.1007/s12529-019-09815-1
Brightman L, Mudiyanselage CH, Langbein K, Smith H, Huang H-C C. Very low energy diets at the Canberra Obesity Management Service: A comparison of patient participation and clinical outcomes following a change in inter-disciplinary service model. J Obes Nutr Disord 2020; 05:140. DOI: 10.29011/2577-2244.100040
Brightman L, Dunne A, Huang H-C C. Mental illness as a predictor of patient attendance and anthropometric changes: observations from an Australian publicly funded obesity management service. Australasian Psychiatry 2021: 29 (3): 266-71 https://doi.org/10.1177%2F1039856220953713
Delaney LJ, Litton E, Melehan KL, Huang H-C C, Lopez V, Van Haren F. The feasibility and reliability of actigraphy to monitor sleep in intensive care patients: an observational study. Critical Care 2021;25 (1): 1-12 (https://doi.org/10.1186/s13054-020-03447-8)
Han M, Wee R, Shadbolt B, Huang H-C C. The effect of age as a predictor of continuous positive airway pressure ventilation acceptance in an outpatients with obstructive sleep apnoea. Journal of Clinical Sleep Medicine 2022: 18 (1): 217-224
Burns R, Firman E, Huang H-C C. Assessing service provision and outcomes at the Canberra Obesity Management Service: A retrospective chart review. Obesity 2022: 30: 2146-55 (https://orcid.org/0000-0001-7320-0992)
Lindfield M, Howarth TP, Perez A, Crespo J, Atos C, Huang, H-C C, Heraganahally SS. Obstructive sleep apnoea in Aboriginal Australians: Polysomnographic outcomes and symptom perception post CPAP implementation. Sleep Advances 2023; 4:1-10 (https://doi.org/10.1093/sleepadvances/zpad015)
Delaney LJ, Litton E, Huang H-C C, Lopez L, Van Haren F. The accuracy of simple, feasible alternatives to polysomnography for assessing sleep in intensive care. Australian Critical Care 2023: 36(3): 361-9 (https://doi.org/10.1016/j.aucc.2022.02.004)
Singer RF, Huang H-C C. Weight change in chronic kidney disease: association with mortality and kidney function. Obesity Science & Practice 2024: 10 (1): e723. (http://doi.org/10.1002/osp4.723)
Atlantis E, Kormas N, Piya M, Sahebol-Amri M, Williams K, Huang H-C C, Bishay R, Chikani V, Girolamo T, Prodan A, Fahey P. Developing a decision aid for clinical obesity services in the real world: The DACOS Nationwide Pilot Study. Obesity Surgery 2024: 34; 2073-83. (https://doi.org/10.1007/s11695-024-07123-6)
Warhurst S, Georgousopoulou E, Sethna F, Huang H-C C. Referral practices and treatment of obstructive sleep apnoea in pregnancies with obesity. Obesity Science & Practice 2024: 10 (2): e754. (https://doi.org/10.1002/osp4.754)
Maher A, Bennett M, Huang H-C C, Gaughwin P, Johnson M, Brady M, Patterson K, Buettikofer T, Morris J, Rainbird V, Mitchell I, Bissett B. Personalised exercise prescription in long COVID: A practical toolbox for a multidisciplinary approach. J Multidiscip Healthc 2024:17; 3981-91. (https://doi.org/10.2147/JMDH.S465946)
Brightman L, Huang H-C C, Georgousopoulou E. Predictors of ongoing attendance at an Australian publicly funded specialist obesity service. Obesity Science & Practice 2024: e70010. (https://doi.org/10.1002/osp4.70010)
Buettikofer T, Maher A, Rainbird V, Bennett M, Freene N, Mitchell I, Huang H-C C, Gaughwin P, Johnson M, Paratz J, Bissett B. Consumer Experience of an Australian Multidisciplinary Long COVID Clinic That Incorporates Personalised Exercise Prescription: A Qualitative Analysis. Health Expectations 2025: 28: e70179 (https://doi.org/10.1111/hex.70179)
Howarth T, Hallworth T, Huang H-C C, Roy A, Saad HB, Garg H, Bahammam AS, Heraganahally S. From ESS to GPSS: Innovations in OSA Screening Tools Across Three Decades -A Comprehensive Update of Thirty-one Screening Questionnaires; Current Pulmonology Reports 2025:14: 28.(https://doi.org/10.1007/s13665-025-00391-2)
Buettikofer T, Maher A, Johnson M, Hartono S, Rainbird V, Nickels M, Bennett M, Huang HCC, Gaughwin P, Vandermeide MA, Carlyle R, Ho W, Brady M, Patterson K, Morris J, Mitchell I, Paratz J, Freene N, Bissett B. Safety and Physical Outcomes of a Novel Australian Multidisciplinary Long COVID Clinic That Incorporates Exercise: A Prospective Observational Study. J Multidiscip Healthc. 2025; 18:7827-7838.(https://doi.org/10.2147/JMDH.S562296)
Abstracts:
Huang H-C C, Doggrell SA. Effects of BDF9148, veratridine and ouabain on the contractility of isolated left ventricle strips from Wistar Kyoto (WKY) and spontaneous hypertensive (SH) rats. J Molecular & Cellular Cardiology 1993; 25(11):viii.
Huang H-C C, Morey S, Chin W. Risk of clinically significant bleeding from transbronchial lung biopsy and degree of renal impairment in a cohort of lung transplant patients. Respirology 2006; 11(suppl 2):A42.
Huang H-C C et al. An oxygen prescribing form improves but does not sustain prescribing habits. Respirology 2006; 11 (suppl 2): A50.
Huang H-C C, Hillman DR, McArdle N. Comparison of device generated apnoea-hypopnoea index (AHI) with polysomnographic AHI in CPAP autotitration. Sleep and Biological Rhythms 2006; 4 (suppl1):A40.
Ansary S, Thompson R, Figurski D, Huang H-C C. Physician-led CPAP acclimatisation improves CPAP uptake rates in patients with obstructive sleep apnoea syndrome. Sleep and Biological Rhythms 2010; 8 (suppl 1):A40
Huang H-C C, Talaulikar G, Walters G, Karpe K, Figurski D, Hurwitz M, Singer R. Sleep apnoea is common and symptoms are under reported in haemodialysis patients. Respirology 2012; 17 (suppl 1): 81.
Huang H-C C, Paul A, Talaulikar G, Walters G, Karpe K, Figurski D, Hurwitz M, Singer R. Manual analysis of Apnealink data does not improve AHI accuracy in stable haemodialysis patients. Respirology 2012; 17 (suppl1): 81.
Adoni H, Huang H-C C, Cooper M. OSA often co-exist with depression and CPAP therapy improves symptoms of depression. Sleep and Biological Rhythms 2012; 10 (suppl 1): 20.
Ssentamu M, Paul A, Figurski D, Huang H-C C. The impact of the new AASM 2007 criterion on polysomnographic apnoea-hypopnoea index in a sleep clinic population. Sleep and Biological Rhythms 2012; 10 (suppl 1): 64.
Adoni H, Figurski D, Brannan JD, Daw L, Hurwitz M, Huang HC. Gender differences in patient’s exhaled nitric oxide referred for bronchial provocation test. Respirology 2013; 18 (Suppl 2): 43
Brannan JD, Adoni H, Daw L, Huang HC, Hurwitz M, Figurski D. Fraction exhaled nitric oxide in patients referred to pulmonary function laboratory for mannitol challenge. Respirology 2013; 18 (Suppl 2): 43
Huang H-C C, Cooper M, Bartlett H, Wyatt B, Wee R, Paul A. Beating sleep apnea: Evidence-based approach changes our understanding to positive airway pressure success. Sleep 2013; 36:A179.
Ting T, Huang H-C C. Flexible fibre-optic bronchoscopy, obesity and sleep disordered breathing: Patients characteristics and complications in 221 cases. Respirology 2014; 19 (Suppl 2):27.
Sharma R, Cooper M, Bartlett H, Wyatt B, Wee R, Pak A, Carroll A, H-C C Huang. CPAP usage patterns in a consecutive series of patients during and after physician led acclimatisation programme. Sleep 2014; 37:A120.
Ting T, Huang H-C C, Hurwitz MD. Flexible fibre-optic bronchoscopy, obesity and sleep disordered breathing: patients’ characteristics and complications in 570 cases. Respirology 2014; 19 (suppl 3): 8.
Huang H-C C, Wee R. Physician-Led Positive Airway Pressure Acclimatisation Registry: A quality assurance program enhances our understanding to therapy success. Sleep & Biological Rhythms 2015; 13 (Suppl 1):15
Huang H-C C, Walters G, Talaulikar G, Carroll A, Figurski D, Karpe K, Hurwitz M, Singer R. Severe sleep apnoea is common in chronic kidney disease and not predicted by symptom questionnaires, Apnealink or bioimpedance measurements. Sleep & Biological Rhythms 2015; 13 (Suppl 1):45
Huang H-C C, Wee R. Continuous positive airway pressure acceptance across the ages: lessons from Canberra Hospital PAP Acclimatisation Registry. Sleep & Biological Rhythms 2015; 13 (Suppl 1):56
Macpherson K, Huang H-C C. The case of vanishing lungs: the effect of idiopathic giant bullous lung disease on respiratory function and exercise tolerance. Respirology 2016; 21 (Suppl 2): 174
Choudhury F, Huang H-C C. Acquired central alveolar hypoventilation and persistent lateral medullary syndrome due to brainstem stroke treated with domiciliary ventilator support via tracheostomy. Respirology2016; 21 (Suppl 2): 171
Kojima C, Blackburn M, Dugdale P, Huang H-C C. Patient outcome audit in ACT Health Obesity Management Service. Int Med J 2017; 47 (Suppl 3): 12.
Kojima C, Huang H-C C. Diagnostic polysomnography in the ACT Obesity Management Service. Int Med J2017; 47 (Suppl 3): 13.
Voon W, Macpherson K, Azzopardi D, Figurski D, Keen M, Huang H-C C. ACT Domiciliary Oxygen and Respiratory Support Scheme Portable Oxygen Concentrator Trial. Respirology 2018; 23 (Suppl 1): 213.
Nanayakkara B, Tai J, Huang H-C C. The aetiology of thoracic empyema in the Australian Capital Territory: An old enemy with a new army. ERJ 2018; 52 (Suppl 62): PA4706
Nanayakkara B, Tai J, Huang H-C C. Outcomes of empyema in the elderly: A study from Australia’s Capital Territory. ERJ 2018; 52 (Suppl 62): PA4685.
Balakrishnan P, Wee R, Musil K, Lim YC, Azzopardi D, Keen M, Huang HCC. Long term follow-up of patients on positive pressure ventilation: What do they receive and expect? J Sleep Research 2018: 27 (Suppl 2):e12766.
Brightman L, Huang H-C C. Assessing for obstructive sleep apnoea in a severely obese population in the ACT. Obesity Research & Clinical Practice 2019: 13(3):303-4.
Brightman L, Dugdale P, Huang H-C C. Program Characteristics and patient outcomes: An update from the ACT Health Obesity Management Service. Obesity Research & Clinical Practice 2019: 13(3): 304.
Wang D, Huang HCC. Utility of awake oxygen saturation to identify obstructive sleep apnoea. ERJ 2019: 54 (suppl 63):PA818
Brightman L, Huang HCC. Assessing for obstructive sleep apnoea in a publicly funded obesity management service. J Sleep Research 2019: 28 (suppl1): P085.
Brightman L, HCC Huang. Mental illness as a predictor of engagement and anthropometric changes: observations from an Australian publicly-funded obesity management service. 22nd Chronic Disease Network and baker Institute Joint 2019 Conference and Baker Educational Symposium.
Wang DC, Smith D, Huang H-C C, Murray N, Thomas P. Spirometry to identify moderate to severe obstructive sleep apnea. AJRCCM 2020; 201: A4142. DOI: 10.1164/ajrccm-conference.2020.201.1_MeetingAbstracts.A4142
Wang DC, Smith D, Huang H-C C, Murray N, Thomas P. Clinical characteristics and polysomnographic parameters of patients with the overlap syndrome. AJRCCM 2020; 201: A4165. DOI: 10.1164/ajrccm-conference.2020.201.1_MeetingAbstracts.A4165
Wang DC, Smith D, Huang H-C C, Murray N, Thomas P. Demographic and clinical parameters associated with obstructive sleep apnea severity. AJRCCM 2020; 201:A4133. DOI: 10.1164/ajrccm-conference.2020.201.1_MeetingAbstracts.A4133
Mathews R, Brightman L, Smith H, Langbein K, Lewis E, Mudiyanselange C, Leach A, Phelps K, Huang H-C C. Outcomes and predictors of success for very low energy diet from Canberra Obesity Service. Obesity2020; 28 (Suppl S2):131
Han M, Wee R, Shadbolt B, Huang H-C C. The effect of age as a predictor of continuous positive airway pressure ventilation acceptance in an outpatient cohort of patients with obstructive sleep apnea. AJRCCM 2021; 203:A1576 DOI: 10.1164/ajrccm-conference.2021.203.1_MeetingAbstracts.A1576
Arumugam S, Han M, Wee R, Huang H-C C. Reducing untreated obstructive sleep apnoea at an Obesity Management Service. Obesity 2021; 29 (Suppl 2): 154 (Poster 267)
Arora A, Wee R, Huang H-C C. Predictors of acceptance for NIV therapy in PAP acclimatisation clinic. Respirology 2022; 27 (Suppl 1): 196 (Poster 190)
Wells S, Inman D, Huang H-C C. Sleep quality and obesity: An investigation into the relationship between obesity and poor sleep quality as measured by polysomnography. Sleep Advances 2022; 3(suppl 1): A68 (poster 136)
Warhurst S, Sethna F, Georgousopoulou E, Huang H-C C. Factors associated with referral to sleep clinic and diagnosis of obstructive sleep apnoea in pregnant people with class III obesity. Sleep Advances 2022; 3(suppl 1): A66 (poster 131)
Wang D, Huang H-C C. Neck circumference versus body mass index to predict moderate to severe obstructive sleep apnoea. Sleep Advances 2022; 3 (suppl 1): A65 (poster 129)
Atlantis E, Kormas N, Piya M, Sahebol-Amri M, William K, Huang H-C C, Bishay R, Chikani V, Girolamo T, Prodan A, Fahey P. Developing a decision aid for clinical obesity services in the real world: The DACOS pilot study. ANZOS 2023.
Slater D, Veldre T, Urban M, Figurski D, Huang H. Utility of Capillary Blood Gases (CBGs) for measuring gas exchange in the sleep laboratory. Sleep Advances 2023; 4 (suppl 1): A72 (poster 103). (https://doi.org/10.1093/sleepadvances/zpad035.188)
Buettikofer T, Maher A, Rainbird V, Bennett, Freene N, Mitchell I, Huang H-C C, Gaughwin P, Johnson M, Paratz J, Bissett B. Consumer experience of an Australian Multidisciplinary Long COVID clinic that incorporates personalised exercise prescription: A qualitative analysis. J Clinical Exercise Physiology 2024; 13 (s2):501. (https://doi.org/10.31189/2165-7629-13-s2.501)
Johnson M, Maher A, Benett M, Buettikofer T, Huang H-C C, Gaughwin P, Rainbird V, Mitchell I, Bissett B. Exercise Prescription in a multidisciplinary long COVID clinic: methodology from an Australian experience. J Clinical exercise Physiology 2024; 13(s2): 507 (https://doi.org/10.31189/2165-7629-13-s2.507)
Wang D, Murtidjaja M, Shastry A, Mandhare A, Nanukuttan Nair L, Huang H-C C. Utility of a STOP-Bang multiple logistic regression model to identify moderate to severe obstructive sleep apnoea. Internal Medicine J 2025: 55 (S1): 167.
Varcoe B, Brew B, Huang H-C C. Factors affecting level II polysomnography (PSG) outcomes in a tertiary referral sleep centre in Australia: a retrospective cohort study. Poster 328, Sleep Medicine 2026 (in press)