Received: 22 July 2019
Accepted: 6 May 2020
First Online: 17 June 2020
Ethics approval and consent to participate
: The study protocol was approved by the Ethics Committee of Peking University Third Hospital (IRB00006761-M2018008). All patients read and signed a written informed consent form. All methods in this study were performed in accordance with relevant guidelines and regulations.
: Not applicable.
: The authors declare no competing financial and non-financial interests.