[Evaluation of nocturnal penile tumescence (NPT) in the differential diagnosis of impotence].
D000293:Adolescent; D000328:Adult; D000368:Aged; D003937:Diagnosis, Differential; D007172:Erectile Dysfunction / Q000175:diagnosis*; D006801:Humans; D008297:Male; D008875:Middle Aged; D010410:Penile Erection; D012890:Sleep / Q000502:physiology