Funding for this research was provided by:
Zhejiang Science and Technology Department Project (2018C35008)
Received: 8 October 2018
Accepted: 5 July 2019
First Online: 12 July 2019
Ethics approval and consent to participate
: The study was approved by the ethics committee of the Shaoxing Universtiy Medical College. The respondents were anonymous, voluntary and consent for participation.
: The manuscript contains some individual person’s data (including age, gender, education, marital status, and so on), consent to publish was obtained from participants.
: The authors declare that they have no competing interests.