title: HLA-DR frequencies in northern Italy.
authors.forename: M
authors.initials: M
authors.lastname: Savi
authors.forename: G
authors.initials: G
authors.lastname: Ferraccioli
mesh_terms: D001171:Arthritis, Juvenile / Q000235:genetics / Q000276:immunology; D004198:Disease Susceptibility; D005787:Gene Frequency; D006684:HLA-DR Antigens; D000949:Histocompatibility Antigens Class II / Q000235:genetics*; D006801:Humans; D007558:Italy
chemical_list: D006684:HLA-DR Antigens; D000949:Histocompatibility Antigens Class II