Funding for this research was provided by:
Chengdu University of Traditional Chinese Medicine (ZRQN2019009)
Sichuan Science and Technology Department (2019132)
Received: 10 March 2020
Accepted: 11 May 2020
First Online: 31 May 2020
Ethics approval and consent to participate
: The proposed systematic review will be based on previously published studies and will not include any human participants, the ethics approval and consent to participate is not applicable.
: All authors agreed that they will use the collected data for academic publications.
: All authors of the study stated that there were no conflicts of interest.