title: Dysfunctional visits to the doctor.
authors.forename: P
authors.initials: P
authors.lastname: Tselikis
mesh_terms: D007172:Erectile Dysfunction / Q000175:diagnosis / Q000188:drug therapy*; D006801:Humans; D008297:Male; D008875:Middle Aged; D010726:Phosphodiesterase Inhibitors / Q000627:therapeutic use; D010879:Piperazines / Q000627:therapeutic use; D011687:Purines; D012307:Risk Factors; D000068677:Sildenafil Citrate; D013450:Sulfones
chemical_list: D010726:Phosphodiesterase Inhibitors; D010879:Piperazines; D011687:Purines; D013450:Sulfones; D000068677:Sildenafil Citrate