Funding for this research was provided by:
Guangzhou Municipal Science and Technology Project (201607010383)
Guangzhou Municipal Health and Family Planning Commission (2016A031002)
Received: 12 November 2020
Accepted: 12 February 2021
First Online: 23 February 2021
Ethics approval and consent to participate
: Ethical approval was obtained from the Research Ethics Committee of The Affiliated Brain Hospital of Guangzhou Medical University (Guangzhou Huiai Hospital) (Number 025, 2017). Participants were all agreed to participate in this study and gave their written consents.
: Not applicable.
: The authors declare that they have no competing interests.