title: Modifications in prostate cancer operation preserve potency.
mesh_terms: D000368:Aged; D007172:Erectile Dysfunction / Q000517:prevention & control*; D006801:Humans; D007989:Libido; D008297:Male; D008875:Middle Aged; D011468:Prostatectomy / Q000379:methods*; D011471:Prostatic Neoplasms / Q000601:surgery