Funding for this research was provided by:
National Natural Science Foundation of China (81571336)
Text and Data Mining valid from 2019-10-11
Received: 3 January 2019
Accepted: 20 September 2019
First Online: 11 October 2019
Ethics approval and consent to participate
: The study was approved by the ethics committee of Zhejiang University (No. ZGL201404–2-2), and all participants had given their written informed consents.
: Not applicable.
: The authors declare that they have no competing interests. Author Wei Wang is currently acting as a Section Editor for BMC Psychiatry.