title: [The question of classification on ED].
authors.affiliation: Department of Urology, School of Medicine, Toho University.
authors.forename: Nobuhisa
authors.initials: N
authors.lastname: Ishii
mesh_terms: D007172:Erectile Dysfunction / Q000145:classification* / Q000503:physiopathology / Q000523:psychology; D006801:Humans; D018783:Impotence, Vasculogenic / Q000503:physiopathology*; D008297:Male