Reply to "Viagra: the risks of recreational use".
Sugar
Sam J
SJ
D005260:Female; D006801:Humans; D008297:Male; D010353:Patient Education as Topic; D010726:Phosphodiesterase Inhibitors; D010879:Piperazines; D011687:Purines; D012725:Sexual Behavior; D012749:Sexually Transmitted Diseases; D000068677:Sildenafil Citrate; D019966:Substance-Related Disorders; D013450:Sulfones
D010726:Phosphodiesterase Inhibitors; D010879:Piperazines; D011687:Purines; D013450:Sulfones; D000068677:Sildenafil Citrate