Zhizhong, Wang http://orcid.org/0000-0002-0612-3218
Koenig, Harold G.
Yan, Tong
Jing, Wen
Mu, Sui
Hongyu, Liu
Guangtian, Liu
Funding for this research was provided by:
China Medical Board (16-254)
Article History
Received: 31 May 2020
Accepted: 15 November 2020
First Online: 25 November 2020
Ethics approval and consent to participate
: The survey was anonymous. The potential risks and benefits of the survey were described on the first page of the survey. Online informed consent was obtained by asking participants to check a box on the device’s screen with the response (I agree to participate in the study; I do not agree to participate in the survey). If the answer was “I do not agree”, the survey was immediately terminated automatically. The study approved by the institutional review board of Ningxia Medical University (approval #2020–112).
: Not apply.
: The authors declare that they have no competing interests.