Funding for this research was provided by:
WHO West Pacific Office (WPDCC1408653)
Received: 23 January 2018
Accepted: 28 September 2018
First Online: 19 October 2018
Ethics approval and consent to participate
: Ethics approval was obtained from the Ethics Advisory Group of The Union, Paris, France (EAG No: 30/17) and Ethics Committee of Chinese Center for Disease Control and Prevention (Number: 201704). Permission for the study was sought from National Center for Tuberculosis Control and Prevention of China (NCTB) before initiating the study. As this was a study involving record review, waiver of written informed consent was sought and waived off by the ethics committees.
: Not applicable.
: The authors declare that they have no competing interests.
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