Construction and evaluation of a hierarchical management model for chronic obstructive pulmonary disease in primary hospitals: A multicenter study
Yao Yu, Ye Aiqiu, Feng Jian, Li Xiachuan, Ding Yuehong, You Zhenhua, Huang Jinhong, Chen Liangyun
Clinical Focus . 2026, (8): 690 -694 .  DOI: 10.3969/j.issn.1004-583X.2026.08.003