[Start of the "simply from love" initiative].
D003142:Communication; D007172:Erectile Dysfunction / Q000451:nursing* / Q000523:psychology; D005260:Female; D006801:Humans; D008149:Love; D008297:Male; D010879:Piperazines / Q000627:therapeutic use; D011687:Purines; D012736:Sex Education; D012747:Sexual Partners / Q000523:psychology*; D000068677:Sildenafil Citrate; D013450:Sulfones
D010879:Piperazines; D011687:Purines; D013450:Sulfones; D000068677:Sildenafil Citrate