title: [Seroepidemiological and clinical studies of adult T cell leukemia in Hokkaido].
mesh_terms: D000328:Adult; D000368:Aged; D006800:Deltaretrovirus Infections / Q000453:epidemiology / Q000276:immunology*; D005260:Female; D006801:Humans; D007564:Japan; D008297:Male; D008875:Middle Aged