Wu Fanqi, Zhang Wenli, Zhang Longguo, Wang Dan, Wan Yixin
Department of Respiratory Medicine, Lanzhou University Second Hospital, Lanzhou, China.
Second Ward of Lanzhou Pulmonary Hospital, Lanzhou, China.
Br J Hosp Med (Lond). 2020 Apr 2;81(4):1-2. doi: 10.12968/hmed.2020.0156. Epub 2020 Apr 21.