@article{ref1,
title="The difference of being human: Morality",
journal="Proceedings of the National Academy of Sciences of the United States of America",
year="2010",
author="Ayala, F. J.",
volume="107",
number="Suppl 2",
pages="9015-9022",
abstract="<p>[Abstract unavailable]</p>",
language="",
issn="0027-8424",
doi="10.1073/pnas.0914616107",
url="http://dx.doi.org/10.1073/pnas.0914616107"
}