These authors contributed equally: Hanhui Zhong, Jingjing Ji, Jinling Zhuang.

The Department of Anesthesiology, Affiliated Hospital of Guangdong Medical University, Zhanjiang, Guangdong, China

Hanhui Zhong, Jinling Zhuang, Ziying Xiong, Pengyun Xie, Xiaolei Liu, Wangli Tian & Jing Tang

The Department of Critical Care Medicine, General Hospital of Southern Theater Command of PLA, Guangzhou, China

Jingjing Ji

The Department of Respiratory Medicine, Guangdong Provincial Hospital of Integrated Chinese and Western Medicine, Foshan, China

Jundi Zheng

Pediatric Intensive Care Unit, Senior Department of Pediatrics, the Seventh Medical Center of PLA General Hospital, Beijing, China

Xiaoyang Hong

Correspondence to Xiaoyang Hong or Jing Tang.