@article{ref1,
title="Personality traits in cesarean--normally delivered children",
journal="Archives of general psychiatry",
year="1964",
author="Pieper, W. J. and Lessing, E. E. and Greenberg, H. A.",
volume="11",
number="",
pages="466-471",
abstract="<p>[Abstract unavailable]</p><p>Language: en</p>",
language="en",
issn="0003-990X",
doi="",
url="http://dx.doi.org/"
}