Sleep state periodicity in prematures and young infants.
D000367:Age Factors; D002940:Circadian Rhythm; D004569:Electroencephalography; D005133:Eye Movements; D005865:Gestational Age; D006801:Humans; D007223:Infant; D007231:Infant, Newborn; D007234:Infant, Premature; D009043:Motor Activity; D012119:Respiration; D012890:Sleep; D012894:Sleep Stages; D014851:Wakefulness