[Viagra].
Shani
S
S
Shemer
J
J
D007172:Erectile Dysfunction / Q000188:drug therapy*; D006801:Humans; D008297:Male; D010726:Phosphodiesterase Inhibitors / Q000737:chemistry / Q000493:pharmacokinetics / Q000627:therapeutic use; D010879:Piperazines / Q000737:chemistry / Q000493:pharmacokinetics / Q000627:therapeutic use*; D011687:Purines; D000068677:Sildenafil Citrate; D013450:Sulfones
D010726:Phosphodiesterase Inhibitors; D010879:Piperazines; D011687:Purines; D013450:Sulfones; D000068677:Sildenafil Citrate