title: [Study of diagnostic criteria of rheumatoid arthritis in children].
mesh_terms: D000293:Adolescent; D000367:Age Factors; D001172:Arthritis, Rheumatoid / Q000175:diagnosis*; D002648:Child; D002675:Child, Preschool; D005260:Female; D006801:Humans; D008297:Male; D013997:Time Factors
vernacular_title: Studium nad diagnostycznymi kryteriami reumatoidalnego zapalenia stawów u dzieci