Ware, J C Characteristics of penile erections during sleep recorded from normal subjects. [electronic resource] - Journal of clinical neurophysiology : official publication of the American Electroencephalographic Society Jan 1992 - 78-87 p. digital Publication Type: Journal Article ISSN: 0736-0258 Standard No.: 10.1097/00004691-199201000-00009 doi Subjects--Topical Terms: AdultAgedCircadian Rhythm--physiologyElectroencephalography--instrumentationHumansMaleMiddle AgedMonitoring, Physiologic--instrumentationPenile Erection--physiologyPlethysmography--instrumentationReference ValuesSleep Stages--physiologySleep, REM--physiology