title: Selective defect of OKT4+ T-lymphocytes in severe immunodeficiency.
mesh_terms: D001402:B-Lymphocytes / Q000276:immunology; D006801:Humans; D007111:Immunity, Cellular; D007153:Immunologic Deficiency Syndromes / Q000276:immunology*; D007223:Infant; D008297:Male; D013499:Surface Properties; D013601:T-Lymphocytes / Q000276:immunology; D006377:T-Lymphocytes, Helper-Inducer / Q000276:immunology*; D013950:Thymus Gland / Q000002:abnormalities / Q000276:immunology