Received: 22 December 2019
Accepted: 15 April 2020
First Online: 20 May 2020
Ethics approval and consent to participate
: A randommized, controlled, prospective trial was approved by Shanghai Renji Hospital Ethics Committee (Ethical number: 2016). Written informed consents were obtained from participants before inclusion. The present trial was registered at ExternalRef removed (the registration number is ExternalRef removed900025718, principal investigator: ZLH, date of registration: Septembere 06, 2019). Written consent has been obtained from each patient to participate this study.
: Not applicable.
: The authors have declared that no competing interest exists.