^aDepartment of Emergency Medicine, Second Affiliated Hospital, School of Medicine

^bDepartment of Emergency Medicine, Institute of Emergency Medicine, Zhejiang University, Hangzhou, Zhejiang, China

Received 21 April 2021 Accepted 6 May 2021

^*Dr. Luping Tang and Dr. Lin Shi contributed equally to the writing of this article.

Corresponding to Mao Zhang, PhD, Department of Emergency Medicine, Second Affiliated Hospital, Zhejiang University School of Medicine and Institute of Emergency Medicine, Zhejiang University, No. 88 Jiefang road, Hangzhou 310009, China, Tel: +86 571 8778 4654; e-mail: [email protected]