title: [Progress in the diagnosis of collagen diseases].
mesh_terms: D003095:Collagen Diseases / Q000175:diagnosis*; D003168:Complement Fixation Tests; D004576:Electromyography; D006801:Humans; D012217:Rheumatoid Factor / Q000032:analysis; D013817:Thermography
chemical_list: D012217:Rheumatoid Factor