Xing, Tianying
Ma, Jinghong
Jia, Chunsong
Ou, Tongwen
Article History
Received: 23 July 2020
Accepted: 24 August 2020
First Online: 28 January 2021
Compliance with ethical standards
:
: The authors declare that they have no conflict of interest.
: This study was performed in line with the principles of the Declaration of Helsinki of 1964 and its later amendments. Approval was granted by the Ethics Committee of Xuanwu Hospital, Capital Medical University.
: Patients or family members provided verbal consent for the telephone follow-up.