Cystitis in partners of Viagra users.
D003075:Coitus; D003556:Cystitis / Q000209:etiology*; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D010879:Piperazines / Q000627:therapeutic use*; D011687:Purines; D000068677:Sildenafil Citrate; D013450:Sulfones
D010879:Piperazines; D011687:Purines; D013450:Sulfones; D000068677:Sildenafil Citrate