Funding for this research was provided by:
World Health Organization (65207)
Text and Data Mining valid from 2019-02-27
Received: 1 August 2018
Accepted: 18 February 2019
First Online: 27 February 2019
Ethics approval and consent to participate
: The study was approved by Research Ethics Board of Health (REBH) vide approval letter No. REBH/Approval/2017/005. Informed written consent was obtained from all participants or his/her guardian in the case of children less than 18 years of age.
: Not applicable.
: The author(s) declare that they have no competing interests.
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