Speaking of sex.
Gilyard
Burl
B
D003937:Diagnosis, Differential; D004501:Education, Medical; D007172:Erectile Dysfunction / Q000188:drug therapy / Q000523:psychology; D005260:Female; D006801:Humans; D008297:Male; D010817:Physician-Patient Relations; D008517:Phytotherapy; D010879:Piperazines / Q000627:therapeutic use; D010936:Plant Extracts / Q000627:therapeutic use; D011687:Purines; D020018:Sexual Dysfunctions, Psychological / Q000188:drug therapy / Q000209:etiology; D019529:Sexuality; D000068677:Sildenafil Citrate; D013450:Sulfones; D014665:Vasodilator Agents / Q000627:therapeutic use
D010879:Piperazines; D010936:Plant Extracts; D011687:Purines; D013450:Sulfones; D014665:Vasodilator Agents; D000068677:Sildenafil Citrate