Funding for this research was provided by:
Tianjin Government Youth Talents Project (201504)
Tianjin Government education commission ‘the 13th five-year plan’ innovation team training plan- Traditional Chinese Medicine Clinical Evaluation Method (TD13-5047)
Received: 19 August 2019
Accepted: 29 September 2020
First Online: 14 October 2020
Ethics approval and consent to participate
: This study is an overview of the literature, thus, ethics approval was not needed.
: The study group consented to publish.
: We declare that we have no conflicts of interest.