title: Smoking and immunoglobulin levels.
mesh_terms: D000293:Adolescent; D000328:Adult; D000368:Aged; D004406:Dysgammaglobulinemia / Q000209:etiology; D005260:Female; D006801:Humans; D007070:Immunoglobulin A / Q000032:analysis; D007074:Immunoglobulin G / Q000032:analysis; D007075:Immunoglobulin M / Q000032:analysis; D007136:Immunoglobulins / Q000032:analysis*; D008297:Male; D008875:Middle Aged; D009664:Norway; D012907:Smoking / Q000503:physiopathology*
chemical_list: D007070:Immunoglobulin A; D007074:Immunoglobulin G; D007075:Immunoglobulin M; D007136:Immunoglobulins