"A combined T cell and B cell immunodeficiency that is caused by a defect in infection-fighting immune cells resulting in individuals with non-functional immune systems."^^ . "disease_ontology"^^ . "NCI:C3472"^^ . . "combined T and B cell inborn immunodeficiency"@en . . "UMLS_CUI:C0085110"^^ . "GARD:7628"^^ . . "severe combined immunodeficiency"^^ . "DOID:627"^^ . "SCID"@en . . "MESH:D016511"^^ . "SNOMEDCT_US_2021_09_01:190994004"^^ .