BibTex format
@article{Grassly:2007:10.1016/S0140-6736(07)60531-5,
author = {Grassly, NC and Wenger, J and Durrani, S and Bahl, S and Deshpande, JM and Sutter, RW and Heymann, DL and Aylward, RB},
doi = {10.1016/S0140-6736(07)60531-5},
journal = {LANCET},
pages = {1356--1362},
title = {Protective efficacy of a monovalent oral type 1 poliovirus vaccine: a case-control study},
url = {http://dx.doi.org/10.1016/S0140-6736(07)60531-5},
volume = {369},
year = {2007}
}