BibTex format
@article{Lewis:2004:10.1097/00002030-200406002-00005,
author = {Lewis, JJC and Ronsmans, C and Ezeh, A and Gregson, S},
doi = {10.1097/00002030-200406002-00005},
journal = {AIDS},
pages = {S35--S43},
title = {The population impact of HIV on fertility in sub-Saharan Africa},
url = {http://dx.doi.org/10.1097/00002030-200406002-00005},
volume = {18},
year = {2004}
}