机译:Reply: chronic obstructive pulmonary disease in rheumatoid arthritis
China Med Univ Hosp, Div Pulm & Crit Care Med, Dept Internal Med, Taichung 404, Taiwan;
China Med Univ Hosp, Management Off Hlth Data, Taichung 404, Taiwan;
China Med Univ, Inst Clin Med Sci, Coll Med, Taichung 404, Taiwan;