@article{Jaffar2004,
author = {Jaffar, S. and Grant, A.D. and Whitworth, J. and Smith, P.G. and Whittle, H.},
title= {The natural history of HIV-1 and HIV-2 infections in adults in Africa: a literature review},
year = {2004},
journal = {Bulletin of the World Health Organization},
volume = {82},
number = {8},
pages = {462--469},
}