title: "Why am I sleepy?": sorting the somnolent.
authors.affiliation: The University of Edinburgh, Respiratory & Sleep Medicine Unit, Department of Medicine, Royal Infirmary, Edinburgh EH3 9YW, Scotland, UK. n.j.douglas@ed.ac.uk
authors.forename: N J
authors.initials: NJ
authors.lastname: Douglas
mesh_terms: D021081:Chronobiology Disorders / Q000175:diagnosis; D003937:Diagnosis, Differential; D006970:Disorders of Excessive Somnolence / Q000175:diagnosis; D006801:Humans; D017593:Kleine-Levin Syndrome / Q000175:diagnosis; D008487:Medical History Taking / Q000379:methods; D009290:Narcolepsy / Q000175:diagnosis; D017286:Polysomnography / Q000379:methods; D015272:Pulmonary Medicine / Q000379:methods; D012148:Restless Legs Syndrome / Q000175:diagnosis; D020181:Sleep Apnea, Obstructive / Q000175:diagnosis; D012893:Sleep Wake Disorders / Q000145:classification / Q000175:diagnosis* / Q000209:etiology* / Q000503:physiopathology