Received: 12 June 2019
Accepted: 30 March 2020
First Online: 28 April 2020
Ethics approval and consent to participate
: Central ethical approval has been confirmed from the Tongji Hospital of Tongji Medical College of Huazhong University Medical Ethics Committee (reference approval number TJ-IRB20180310) and we will not begin recruiting at other centers in the trial until local ethical approval has been obtained. Written informed consent is obtained from the patients after screening.
: Not applicable.
: The authors declare that they have no competing interests.