Corrigendum: Serum CYR61 is associated with airway inflammation and is a potential biomarker for severity in chronic obstructive pulmonary disease - Tan, Zhu-Xia; Fu, Lin; Wang, Wen-Jing; Zhan, Ping; Zhao, Hui; Wang, Hua; Xu, De-Xiang (Frontiers in Medicine, 2023)