Viagra and contraceptives.
Phillips
Kathryn A
KA
Spetz
Joanne
J
Haas
Jennifer S
JS
D003270:Contraceptive Agents / Q000191:economics*; D005260:Female; D006801:Humans; D019458:Insurance Coverage / Q000331:legislation & jurisprudence; D008019:Life Style; D008297:Male; D010879:Piperazines / Q000191:economics*; D011687:Purines; D000068677:Sildenafil Citrate; D013450:Sulfones; D014481:United States
D003270:Contraceptive Agents; D010879:Piperazines; D011687:Purines; D013450:Sulfones; D000068677:Sildenafil Citrate