@article{Liljeros2003,
title={Sexual contacts and epidemic thresholds - Reply},
author={Liljeros F, 
Edling CR, 
Stanley HE, 
Aberg Y, 
Amaral LAN},
journal={Nature},
volume={423},
doi={10.1038/423606a},
year={2003},
month={JUN},
day={5},
pages={606--606},
}