Funding for this research was provided by:
China Medical Board (10-029)
Received: 19 September 2017
Accepted: 7 January 2019
First Online: 14 January 2019
Ethics approval and consent to participate
: The study was approved by the Ethics Committee of School of Medicine of Xi’an Jiaotong University (China), and the approval number was 2,014,189. The questionnaire was anonymous and informed consent was obtained from all participated RHWs to complete the questionnaire.
: Not applicable
: The authors declare that they have no competing interests.
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