Asthma-COPD overlap syndrome showed more exacerbations however lower mortality than COPD

Bai, JW; Mao, B; Yang, WL; Liang, S; Lu, HW; Xu, JF

Xu, JF (reprint author), Tongji Univ, Sch Med, Dept Resp & Crit Care Med, Shanghai Pulm Hosp, 507 Zhengmin Rd, Shanghai 200433, Peoples R China.

QJM-AN INTERNATIONAL JOURNAL OF MEDICINE, 2017; 110 (7): 431