title: Male erectile dysfunction.
authors.forename: D
authors.initials: D
authors.lastname: Gould
mesh_terms: D000328:Adult; D000368:Aged; D000369:Aged, 80 and over; D000075202:Contraindications; D007172:Erectile Dysfunction / Q000188:drug therapy*; D006801:Humans; D008297:Male; D008875:Middle Aged; D010879:Piperazines / Q000009:adverse effects / Q000627:therapeutic use*; D011687:Purines; D000068677:Sildenafil Citrate; D013450:Sulfones
chemical_list: D010879:Piperazines; D011687:Purines; D013450:Sulfones; D000068677:Sildenafil Citrate