title: [Letter: Diagnostic value of rheumatoid factor and antistreptolysin titer].
mesh_terms: D000989:Antistreptolysin / Q000032:analysis*; D006801:Humans; D012216:Rheumatic Diseases / Q000097:blood; D012217:Rheumatoid Factor / Q000032:analysis*
chemical_list: D000989:Antistreptolysin; D012217:Rheumatoid Factor
vernacular_title: Diagnostischer Wert von Rheumafaktor und Antistreptolysintiter