Corporeal calibration: a discriminatory test for impotence.
D000328:Adult; D000368:Aged; D007172:Erectile Dysfunction / Q000175:diagnosis*; D006801:Humans; D008297:Male; D008875:Middle Aged; D010413:Penis / Q000033:anatomy & histology / Q000502:physiology; D010991:Plethysmography; D012890:Sleep