title: An unusual cause of obstructive sleep apnoea.
authors.forename: C M
authors.initials: CM
authors.lastname: Chu
authors.forename: P W
authors.initials: PW
authors.lastname: Ng
authors.forename: P K
authors.initials: PK
authors.lastname: Ku
mesh_terms: D006801:Humans; D007024:Hypotension, Orthostatic / Q000150:complications; D008297:Male; D008875:Middle Aged; D019578:Multiple System Atrophy / Q000150:complications / Q000175:diagnosis; D012791:Shy-Drager Syndrome / Q000150:complications / Q000175:diagnosis; D012891:Sleep Apnea Syndromes / Q000209:etiology*; D014139:Tracheostomy / Q000295:instrumentation; D016055:Urinary Retention / Q000150:complications; D014826:Vocal Cord Paralysis / Q000150:complications* / Q000175:diagnosis