title: Immunoglobulinopathy in Down's syndrome.
mesh_terms: D000293:Adolescent; D002648:Child; D002675:Child, Preschool; D004314:Down Syndrome / Q000276:immunology*; D005260:Female; D006511:Hepatitis B Antigens / Q000032:analysis; D006801:Humans; D007070:Immunoglobulin A / Q000032:analysis; D007074:Immunoglobulin G / Q000032:analysis; D007075:Immunoglobulin M / Q000032:analysis; D007136:Immunoglobulins / Q000032:analysis*; D007223:Infant; D007231:Infant, Newborn; D008297:Male
chemical_list: D006511:Hepatitis B Antigens; D007070:Immunoglobulin A; D007074:Immunoglobulin G; D007075:Immunoglobulin M; D007136:Immunoglobulins