title: [Yesterday, Viagra was a drug (2) ].
authors: Jean-Yves
authors: JY
authors: Nau
mesh_terms: D007172:Erectile Dysfunction / Q000188:drug therapy; D006801:Humans; D008297:Male; D010879:Piperazines / Q000008:administration & dosage / Q000627:therapeutic use*; D011687:Purines / Q000008:administration & dosage / Q000627:therapeutic use; D000068677:Sildenafil Citrate; D013450:Sulfones / Q000008:administration & dosage / Q000627:therapeutic use*; D014665:Vasodilator Agents / Q000008:administration & dosage / Q000627:therapeutic use*
chemical_list: D010879:Piperazines; D011687:Purines; D013450:Sulfones; D014665:Vasodilator Agents; D000068677:Sildenafil Citrate