title: Rheumatoid factor and secondary rheumatoid disturbances in patients with haemophilia.
mesh_terms: D006467:Hemophilia A / Q000150:complications / Q000276:immunology*; D006801:Humans; D012216:Rheumatic Diseases / Q000209:etiology / Q000276:immunology*; D012217:Rheumatoid Factor / Q000032:analysis*; D013577:Syndrome
chemical_list: D012217:Rheumatoid Factor