title: Letter: Neutropenia with rheumatoid arthritis.
mesh_terms: D000380:Agranulocytosis / Q000209:etiology* / Q000276:immunology; D000974:Antibodies, Antinuclear / Q000032:analysis; D001172:Arthritis, Rheumatoid / Q000150:complications* / Q000276:immunology; D003165:Complement System Proteins / Q000032:analysis; D006801:Humans; D007074:Immunoglobulin G / Q000032:analysis; D007962:Leukocytes / Q000276:immunology; D012217:Rheumatoid Factor / Q000032:analysis
chemical_list: D000974:Antibodies, Antinuclear; D007074:Immunoglobulin G; D003165:Complement System Proteins; D012217:Rheumatoid Factor