Text and Data Mining valid from 2019-11-09
Received: 20 May 2019
Accepted: 4 September 2019
First Online: 9 November 2019
Ethics approval and consent to participate
: This multi-center RCT was approved by the Ethics Committee of Yueyang Hospital of Integrated Traditional Chinese and Western Medicine on 25 April 2019 (certificate number 2019–034). The purpose, procedures, and potential risks of the RCT will be explained clearly to the participants. All participants will give their written informed consent to the research assistant before joining the RCT.
: Not applicable.
: The authors declare that they have no competing interests.