@article{ref1,
title="Risk homeostasis: balancing the biological and psychosocial effects of delayed childbearing",
journal="Journal of obstetrics and gynaecology Canada",
year="2011",
author="Lisonkova, Sarka and Joseph, K. S.",
volume="33",
number="8",
pages="789-790",
abstract="<p>[Abstract unavailable]</p><p>Language: en</p>",
language="en",
issn="1701-2163",
doi="",
url="http://dx.doi.org/"
}