BibTex format
@article{Wheelock:2012:10.1136/bmjopen-2012-001234,
author = {Wheelock, A and Eisingerich, AB and Gomez, GB and Gray, E and Dybul, MR and Piot, P},
doi = {10.1136/bmjopen-2012-001234},
journal = {BMJ Open},
title = {Views of policymakers, healthcare workers and NGOs on HIV pre-exposure prophylaxis (PrEP): a multinational qualitative study},
url = {http://dx.doi.org/10.1136/bmjopen-2012-001234},
volume = {4},
year = {2012}
}