title: ABO and Rh blood group distribution in seropositive rheumatoid arthritis.
authors.affiliation: Rheumatism Foundation Hospital, Heinola, Finland.
authors.forename: K
authors.initials: K
authors.lastname: Laiho
authors.forename: M
authors.initials: M
authors.lastname: Kauppi
authors.forename: H
authors.initials: H
authors.lastname: Kautiainen
authors.forename: K
authors.initials: K
authors.lastname: Kaarela
mesh_terms: D000017:ABO Blood-Group System; D000293:Adolescent; D000328:Adult; D000368:Aged; D001172:Arthritis, Rheumatoid / Q000097:blood*; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D012204:Rh-Hr Blood-Group System
chemical_list: D000017:ABO Blood-Group System; D012204:Rh-Hr Blood-Group System