title: The elevation of serum IGA in emphysema.
mesh_terms: D000328:Adult; D000368:Aged; D005260:Female; D006801:Humans; D007070:Immunoglobulin A; D007074:Immunoglobulin G; D007136:Immunoglobulins; D008297:Male; D008875:Middle Aged; D011656:Pulmonary Emphysema / Q000276:immunology*
chemical_list: D007070:Immunoglobulin A; D007074:Immunoglobulin G; D007136:Immunoglobulins