Erectile dysfunction epidemiology.
D000328:Adult; D000368:Aged; D000375:Aging; D003710:Demography; D048909:Diabetes Complications; D007172:Erectile Dysfunction / Q000453:epidemiology* / Q000209:etiology; D006801:Humans; D008019:Life Style; D008297:Male; D008875:Middle Aged; D012907:Smoking; D012959:Socioeconomic Factors