title: Rheumatoid factors are anti-idiotypic antibodies against virus-induced anti-Fc receptor antibodies. A hypothesis for the induction of some rheumatoid factors.
mesh_terms: D000914:Antibodies, Viral / Q000276:immunology*; D006801:Humans; D007130:Immunoglobulin Idiotypes / Q000276:immunology*; D008954:Models, Biological; D011961:Receptors, Fc / Q000096:biosynthesis / Q000276:immunology*; D012217:Rheumatoid Factor / Q000096:biosynthesis* / Q000276:immunology
chemical_list: D000914:Antibodies, Viral; D007130:Immunoglobulin Idiotypes; D011961:Receptors, Fc; D012217:Rheumatoid Factor