Huanyu LONG ; Zhenzhen XING ; Di CHAI ; Weiming LIU ; Yaqi TONG ; Yuxia WANG ; Yali MA ; Mingming PAN ; Jia CUI ; Yanfei GUO
Chinese Medical Journal 2022;135(5):622-624
Humans ; Pulmonary Disease, Chronic Obstructive ; Smoke/adverse effects* ; Tobacco ; Tobacco Smoke Pollution