title: A survey of the rheumatoid factor using the sheep cell agglutination test.
mesh_terms: D000293:Adolescent; D000328:Adult; D000368:Aged; D044466:Asian People; D005260:Female; D006386:Hemagglutination Tests; D006801:Humans; D008296:Malaysia; D008297:Male; D008875:Middle Aged; D012217:Rheumatoid Factor / Q000032:analysis*; D012424:Rural Population; D014505:Urban Population; D044465:White People
chemical_list: D012217:Rheumatoid Factor