title: [Clinico-immunological study of rheumatoid arthritis in middle-aged and elderly patients].
mesh_terms: D000367:Age Factors; D000368:Aged; D000917:Antibody Formation; D001172:Arthritis, Rheumatoid / Q000175:diagnosis* / Q000276:immunology; D005260:Female; D006801:Humans; D007111:Immunity, Cellular; D008297:Male; D008875:Middle Aged; D012217:Rheumatoid Factor / Q000032:analysis; D050378:T-Lymphocytes, Regulatory / Q000276:immunology
chemical_list: D012217:Rheumatoid Factor
vernacular_title: Kliniko-immunologicheskoe izuchenie revmatoidnogo artrita v pozhilom i starcheskom vozraste.