Good sex is more than just a good erection.
Kermode-Scott
B
B
D007172:Erectile Dysfunction / Q000188:drug therapy*; D005194:Family Practice; D005260:Female; D006801:Humans; D008297:Male; D008487:Medical History Taking; D010726:Phosphodiesterase Inhibitors / Q000494:pharmacology / Q000627:therapeutic use*; D010879:Piperazines / Q000494:pharmacology / Q000627:therapeutic use*; D011687:Purines; D012725:Sexual Behavior; D000068677:Sildenafil Citrate; D013450:Sulfones
D010726:Phosphodiesterase Inhibitors; D010879:Piperazines; D011687:Purines; D013450:Sulfones; D000068677:Sildenafil Citrate