Zheng, Xiuli
Wu, Mingli
Shi, Huihui
Er, Limian
Wang, Kan
Cao, Ying
Li, Shengmian
Article History
Received: 16 March 2022
Accepted: 14 June 2022
First Online: 27 June 2022
Declarations
:
: Our study was approved by the Ethics Committee of the Fourth Hospital of Hebei Medical University (ID: 2021KS002). All methods were carried out in accordance with relevant guidelines and regulations. Written informed consent was obtained from all patients before performing any endoscopic procedures.
: Not applicable.
: The authors declare that they have no competing interests.