title: [Incidence of seropositivity for rheumatoid factor in relation to age].
mesh_terms: D000293:Adolescent; D000328:Adult; D000367:Age Factors; D000368:Aged; D000888:Antibodies, Anti-Idiotypic / Q000032:analysis; D000918:Antibody Specificity; D001172:Arthritis, Rheumatoid / Q000175:diagnosis* / Q000453:epidemiology; D001323:Autoantibodies / Q000032:analysis; D005260:Female; D006801:Humans; D006942:Hypergammaglobulinemia / Q000175:diagnosis; D007841:Latex Fixation Tests; D008297:Male; D008875:Middle Aged; D012216:Rheumatic Diseases / Q000175:diagnosis; D012217:Rheumatoid Factor / Q000032:analysis*; D012698:Serologic Tests; D012737:Sex Factors; D005719:gamma-Globulins / Q000032:analysis
chemical_list: D000888:Antibodies, Anti-Idiotypic; D001323:Autoantibodies; D005719:gamma-Globulins; D012217:Rheumatoid Factor
vernacular_title: Incidenza della sieropositivitã per il fattore reumatoide in rapporto all' et a.