Received: 17 December 2018
Accepted: 15 May 2019
First Online: 22 May 2019
Ethics approval and consent to participate
: Ethical approval was obtained from the Institutional Review Board (IRB), Institute of Medicine, Tribhuvan University Teaching Hospital, Kathmandu, Nepal. Written informed consent was obtained from the children’s parents or guardians before enrolment.
: Not Applicable.
: The authors declare that they have no competing interests.
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