Chronic obstructive pulmonary disease: a subgroup of patients identified by serum alpha-1-antitrypsin and immunoglobulin concentrations.
D001991:Bronchitis / Q000097:blood*; D002908:Chronic Disease; D005500:Follow-Up Studies; D006801:Humans; D007074:Immunoglobulin G / Q000032:analysis; D007075:Immunoglobulin M / Q000032:analysis; D011656:Pulmonary Emphysema / Q000097:blood*; D012129:Respiratory Function Tests; D012131:Respiratory Insufficiency / Q000145:classification; D012698:Serologic Tests; D014361:Trypsin Inhibitors / Q000097:blood
D007074:Immunoglobulin G; D007075:Immunoglobulin M; D014361:Trypsin Inhibitors