@article{Westendorp2001,
author = {Westendorp, R.G.J. and van Dunne, F.M. and Kirkwood, T.B. and Halmerhorst, F.M. and Huizinga, T.W.J.},
title= {Optimizing human fertility and survival},
year = {2001},
doi = {10.1038/90868},
journal = {Nature Medicine},
volume = {7},
pages = {873},
}