title: Need for polysomnographic studies in research on disorders of initiating and maintaining sleep.
authors.forename: W V
authors.initials: WV
authors.lastname: McCall
authors.forename: J D
authors.initials: JD
authors.lastname: Edinger
mesh_terms: D000328:Adult; D000367:Age Factors; D004594:Electrophysiology; D006801:Humans; D012107:Research Design / Q000592:standards; D012890:Sleep / Q000502:physiology*; D007319:Sleep Initiation and Maintenance Disorders / Q000175:diagnosis / Q000503:physiopathology; D012893:Sleep Wake Disorders / Q000175:diagnosis* / Q000503:physiopathology