title: Penile rigidity in erectile dysfunction treated with alprostadil.
authors.affiliation: Center for impotence and Fertility, Rome, Italy.
authors.forename: E
authors.initials: E
authors.lastname: Greco
authors.forename: P
authors.initials: P
authors.lastname: Polonio-Balbi
mesh_terms: D000328:Adult; D000368:Aged; D000527:Alprostadil / Q000008:administration & dosage*; D007172:Erectile Dysfunction / Q000188:drug therapy* / Q000503:physiopathology; D006801:Humans; D008297:Male; D008875:Middle Aged; D010413:Penis / Q000503:physiopathology*; D016896:Treatment Outcome; D014665:Vasodilator Agents / Q000008:administration & dosage*
chemical_list: D014665:Vasodilator Agents; D000527:Alprostadil