title: [Polygraphic studies of sleep. I. Polygraphy of sleep in normal persons].
mesh_terms: D000293:Adolescent; D000328:Adult; D002540:Cerebral Cortex / Q000502:physiology*; D004569:Electroencephalography; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D012890:Sleep / Q000502:physiology*; D012894:Sleep Stages / Q000502:physiology; D014851:Wakefulness / Q000502:physiology
vernacular_title: Badania poligraficzne snu. I. Poligrafia snu osób zdrowych.