@article{ref1,
title="Identical reared apart twins concordant for transsexuality",
journal="J Exp Clin Med",
year="2014",
author="Segal, N.L. and Diamond, M.",
volume="6",
number="2",
pages="e74-e74",
abstract="<p>[Abstract unavailable]</p><p>Language: en</p>",
language="en",
issn="1878-3317",
doi="10.1016/j.jecm.2014.02.007",
url="http://dx.doi.org/10.1016/j.jecm.2014.02.007"
}