title: Immunological considerations in connective tissue diseases.
mesh_terms: D000917:Antibody Formation; D001323:Autoantibodies; D003167:Complement Activation; D003240:Connective Tissue Diseases / Q000276:immunology*; D006680:HLA Antigens / Q000276:immunology; D006801:Humans; D013601:T-Lymphocytes / Q000276:immunology
chemical_list: D001323:Autoantibodies; D006680:HLA Antigens