Fu, Rong
Qiu, Tingting
Ling, Wenwu
Lu, Qiang
Luo, Yan
Article History
Received: 12 January 2021
Accepted: 17 March 2021
First Online: 31 March 2021
Declarations
:
: This retrospective study was approved by the ethics committee of West China Hospital, Sichuan University and in accordance with the Declaration of Helsinki (approval no. B2015-063). Written informed consents were obtained from all patients.
: Not applicable.
: There is nothing to declare.