[Studies on the rheumatoid factor. Detection of IgA- and IgG-rheumatoid factors].
D002845:Chromatography; D006386:Hemagglutination Tests; D006801:Humans; D007074:Immunoglobulin G / Q000032:analysis*; D012217:Rheumatoid Factor / Q000032:analysis*; D005719:gamma-Globulins / Q000032:analysis*
D007074:Immunoglobulin G; D005719:gamma-Globulins; D012217:Rheumatoid Factor