title: [Selective IgA deficiency in Japan. Frequency among 18,200 hospital patients and 22,522 blood donors].
mesh_terms: D000293:Adolescent; D000328:Adult; D001782:Blood Donors; D002648:Child; D002675:Child, Preschool; D004406:Dysgammaglobulinemia / Q000453:epidemiology*; D006801:Humans; D017098:IgA Deficiency; D007297:Inpatients; D007564:Japan; D008297:Male; D008875:Middle Aged