@article{de Walque2007,
author = {de Walque, D.},
title= {Sero-discordant couples in five African countries: implications for prevention strategies},
year = {2007},
doi = {10.1111/j.1728-4457.2007.00182.x},
journal = {Population and Development Review},
volume = {33},
number = {3},
pages = {501--523},
}