@article{Yadav2013,
author = {Yadav, D. and Shekhar, C. },
title= {India's Universal Immunisation Programme to prevent children from preventable disease: retention and dropout approach},
year = {2013},
doi = {10.1016/S0140-6736(13)61405-1},
journal = {The Lancet},
volume = {381},
pages = {S151},
}