Immune deficiency disorders.
D000361:Agammaglobulinemia / Q000276:immunology; D001402:B-Lymphocytes / Q000276:immunology; D006801:Humans; D007136:Immunoglobulins / Q000032:analysis; D007153:Immunologic Deficiency Syndromes / Q000150:complications / Q000276:immunology*; D007223:Infant; D007239:Infections / Q000209:etiology; D008297:Male; D013601:T-Lymphocytes / Q000276:immunology
D007136:Immunoglobulins