Letter: Sudden-infant-death syndrome and immunodeficiency.
D006801:Humans; D007071:Immunoglobulin A, Secretory; D007153:Immunologic Deficiency Syndromes / Q000150:complications*; D007223:Infant; D013398:Sudden Infant Death / Q000209:etiology*
D007071:Immunoglobulin A, Secretory