title: Impotence.
mesh_terms: D000368:Aged; D000375:Aging; D003937:Diagnosis, Differential; D004359:Drug Therapy, Combination; D064420:Drug-Related Side Effects and Adverse Reactions; D007172:Erectile Dysfunction / Q000175:diagnosis / Q000209:etiology / Q000628:therapy; D006801:Humans; D008297:Male; D008722:Methods; D008875:Middle Aged; D010410:Penile Erection; D010413:Penis / Q000033:anatomy & histology / Q000502:physiology; D019736:Prostheses and Implants; D013739:Testosterone / Q000097:blood / Q000627:therapeutic use; D015032:Zinc / Q000172:deficiency
chemical_list: D013739:Testosterone; D015032:Zinc