BibTex format
@article{Nutt:2016:10.1016/S0140-6736(15)00253-6,
author = {Nutt, DJ and Phillips, LD and Balfour, D and Curran, HV and Dockrell, M and Foulds, J and Fagerstrom, K and Letlape, K and Polosa, R and Ramsey, J and Sweanor, D},
doi = {10.1016/S0140-6736(15)00253-6},
journal = {LANCET},
pages = {1160--1162},
title = {E-cigarettes are less harmful than smoking},
url = {http://dx.doi.org/10.1016/S0140-6736(15)00253-6},
volume = {387},
year = {2016}
}