@article{Bertozzi2008,
author = {Bertozzi, S.M. and Laga, M. and Bautista-Arredondo, S. and Coutinho, A.},
title= {Making HIV prevention programmes work},
year = {2008},
doi = {10.1016/S0140-6736(08)60889-2},
journal = {Lancet},
volume = {372},
number = {9641},
pages = {831--844},
}