Postprostatectomy impotence in elderly patients.
D000368:Aged; D003376:Counseling; D004542:Ejaculation; D007172:Erectile Dysfunction / Q000209:etiology* / Q000503:physiopathology / Q000517:prevention & control; D006801:Humans; D008297:Male; D008875:Middle Aged; D011468:Prostatectomy / Q000009:adverse effects*