Clinical characteristics of COVID-19 infection in chronic obstructive pulmonary disease: a multicenter, retrospective, observational study

Fan Wu, Yumin Zhou, Zhongfang Wang, Min Xie, Zhe Shi, Zhiqiang Tang, Xiaohe Li, Xiaochen Li, Chunliang Lei, Yimin Li, Zhengyi Ni, Yu Hu, Xiaoqing Liu, Wenguang Yin, Linling Cheng, Feng Ye, Jieqi Peng, Lingmei Huang, Jia Tian, Lingjuan Zhang, Xiaoneng Mo, Ying Zhang, Ke Hu, Yongliang Jiang, Weijie Guan, Jie Xiang, Yingxia Liu, Yixiang Peng, Li Wei, Yahua Hu, Peng Peng, Jianming Wang, Jiyang Liu, Wei Huang, Ruchong Chen, Jianping Zhao, Shiyue Li, Nuofu Zhang, Jincun Zhao, Nanshan Zhong, Pixin Ran, for the Medical Treatment Expert Group for COPD and COVID-19