Letter: Selective IgA deficiency.
D004406:Dysgammaglobulinemia; D006801:Humans; D007070:Immunoglobulin A; D007071:Immunoglobulin A, Secretory; D007153:Immunologic Deficiency Syndromes; D007239:Infections / Q000276:immunology
D007070:Immunoglobulin A; D007071:Immunoglobulin A, Secretory