title: David the bubble boy: some lessons he has taught us.
mesh_terms: D000818:Animals; D001402:B-Lymphocytes / Q000276:immunology*; D002648:Child; D004780:Environment, Controlled; D006801:Humans; D007070:Immunoglobulin A / Q000032:analysis; D007075:Immunoglobulin M / Q000032:analysis; D007153:Immunologic Deficiency Syndromes / Q000151:congenital*; D007231:Infant, Newborn; D008297:Male; D013601:T-Lymphocytes / Q000276:immunology*
chemical_list: D007070:Immunoglobulin A; D007075:Immunoglobulin M