@misc{miscd517cb2e,
title   = {Effects of India's new polio policy on travellers [Carta]},
author = {Quam, Mikkel and Massad, Eduardo and Wilder-Smith, Annelies},
year = {2014},
doi = {10.1016/S0140-6736(14)60537-7},
journal   = {Lancet}
}