title: [The prevalence of ED in Japan: cross-national epidemiologic study].
authors.affiliation: Department of Urology, Hakujikai Memorial General Hospital.
authors.forename: Masafumi
authors.initials: M
authors.lastname: Shirai
mesh_terms: D000328:Adult; D000368:Aged; D004812:Epidemiologic Methods; D007172:Erectile Dysfunction / Q000453:epidemiology*; D006801:Humans; D007564:Japan / Q000453:epidemiology; D008297:Male; D008875:Middle Aged; D015995:Prevalence