title: Primary immunodeficiency diseases. Report of a World Health Organization scientific group.
mesh_terms: D000917:Antibody Formation; D001402:B-Lymphocytes / Q000276:immunology; D001853:Bone Marrow / Q000473:pathology; D006386:Hemagglutination Tests; D006801:Humans; D007110:Immunity, Active; D007111:Immunity, Cellular; D007136:Immunoglobulins / Q000032:analysis; D007153:Immunologic Deficiency Syndromes / Q000097:blood / Q000175:diagnosis / Q000235:genetics / Q000276:immunology / Q000628:therapy; D007413:Intestinal Mucosa / Q000473:pathology; D007958:Leukocyte Count; D008198:Lymph Nodes / Q000473:pathology; D008213:Lymphocyte Activation; D011946:Receptors, Antigen / Q000235:genetics; D012007:Rectum; D012882:Skin Tests; D013601:T-Lymphocytes / Q000145:classification / Q000276:immunology; D013950:Thymus Gland / Q000473:pathology
chemical_list: D007136:Immunoglobulins; D011946:Receptors, Antigen