title: A study of the relationship of alpha 1-antitrypsin phenotype to the occurrence and severity of juvenile rheumatoid arthritis.
mesh_terms: D001171:Arthritis, Juvenile / Q000235:genetics*; D002648:Child; D005260:Female; D006801:Humans; D008297:Male; D010641:Phenotype; D000515:alpha 1-Antitrypsin / Q000235:genetics*
chemical_list: D000515:alpha 1-Antitrypsin