title: Hidden 19S IgM rheumatoid factors.
authors.affiliation: Department of Internal Medicine, St Louis University School of Medicine, MO 63104.
authors.forename: T L
authors.initials: TL
authors.lastname: Moore
authors.forename: R W
authors.initials: RW
authors.lastname: Dorner
authors.forename: T G
authors.initials: TG
authors.lastname: Osborn
authors.forename: J
authors.initials: J
authors.lastname: Zuckner
mesh_terms: D001171:Arthritis, Juvenile / Q000097:blood* / Q000503:physiopathology; D002648:Child; D002850:Chromatography, Gel; D003240:Connective Tissue Diseases / Q000097:blood; D006801:Humans; D007075:Immunoglobulin M / Q000032:analysis*; D012217:Rheumatoid Factor / Q000032:analysis*; D013582:Synovial Fluid / Q000032:analysis
chemical_list: D007075:Immunoglobulin M; D012217:Rheumatoid Factor