Funding for this research was provided by:
Guangdong Science of Medical Technique Program (A2018440)
Guangzhou Health Science and Technology Guidance Project (906283101031)
Received: 18 October 2019
Accepted: 2 July 2020
First Online: 10 July 2020
Ethics approval and consent to participate
: The proposed study had obtained ethics approval from IRB of Affiliated Brain Hospital of Guangzhou Medical University. Written informed consent will be obtained from participants before the surveys.
: The details and figure of this manuscript will be freely available on the internet and may be seen by the general public.
: The authors declare that they have no competing interests.