Complete diagnostic evaluation and classification of the impotent male.
D000328:Adult; D000368:Aged; D007172:Erectile Dysfunction / Q000145:classification / Q000175:diagnosis*; D006801:Humans; D008297:Male; D008875:Middle Aged; D008991:Monitoring, Physiologic; D010413:Penis / Q000098:blood supply; D011446:Prospective Studies