Received: 21 January 2019
Accepted: 24 June 2019
First Online: 2 July 2019
Ethics approval and consent to participate
: Ethics approval was obtained from Medecins Sans Frontieres Ethics Review Board, Jawaharlal Nehru University Ethics Review Board, as well as Rajendra Institute of Medical Sciences Ethics Committee. All participants in the study provided written informed consent.
: Not applicable.
: The authors declare that they have no competing interests.