title: Letter: Severe combined immuno-deficiency and trisomy D.
mesh_terms: D001402:B-Lymphocytes; D002901:Chromosomes, Human, 13-15; D006801:Humans; D007153:Immunologic Deficiency Syndromes / Q000150:complications*; D007958:Leukocyte Count; D013601:T-Lymphocytes; D014314:Trisomy