Xiong, Ribo
Deng, Aiwen
Article History
Received: 2 April 2019
Accepted: 14 April 2020
First Online: 25 April 2020
Ethics approval and consent to participate
: Ethical approval was obtained from the Research Ethics Board of Southern Medical University on January 12th, 2014. Participants were provided with a participant information sheet and asked to sign a consent form prior to the interviews being undertaken.
: Not applicable.
: The authors declare that they have no competing interests.