Text and Data Mining valid from 2019-08-06
Received: 5 February 2019
Accepted: 30 July 2019
First Online: 6 August 2019
Ethics approval and consent to participate
: Ethics approval for this study was obtained from the ethical review board of the Nepal Health Research Council (NHRC) (Ref no. 535). Written permission was taken from the District Education Office, Lalitpur. Written informed consent to participate was obtained from all the respondent parents and school authority before data collection.
: Not applicable.
: The authors declare that they have no competing interests.