title: On the aetiopathogenesis of rheumatoid arthritis.
mesh_terms: D000936:Antigen-Antibody Complex; D001170:Arthritis, Infectious; D001172:Arthritis, Rheumatoid / Q000209:etiology* / Q000276:immunology / Q000382:microbiology; D003015:Clostridium Infections / Q000150:complications; D003016:Clostridium perfringens; D003182:Complement C5 / Q000378:metabolism; D003183:Complement C6 / Q000378:metabolism; D003184:Complement C7 / Q000378:metabolism; D005767:Gastrointestinal Diseases / Q000150:complications; D006801:Humans; D007070:Immunoglobulin A / Q000378:metabolism; D007074:Immunoglobulin G / Q000378:metabolism; D007075:Immunoglobulin M / Q000378:metabolism; D011602:Psychophysiologic Disorders / Q000150:complications; D012217:Rheumatoid Factor / Q000378:metabolism
chemical_list: D000936:Antigen-Antibody Complex; D003182:Complement C5; D003183:Complement C6; D003184:Complement C7; D007070:Immunoglobulin A; D007074:Immunoglobulin G; D007075:Immunoglobulin M; D012217:Rheumatoid Factor