title: Immunologic deficiency disease. Approach to diagnosis.
mesh_terms: D000917:Antibody Formation; D003165:Complement System Proteins / Q000032:analysis; D006801:Humans; D007111:Immunity, Cellular; D007153:Immunologic Deficiency Syndromes / Q000175:diagnosis*; D007158:Immunologic Techniques; D010587:Phagocytosis
chemical_list: D003165:Complement System Proteins