@article{ref1,
title="Human studies on the biological basis of reinforcement. A neuroendocrine perspective",
journal="Research publications - Association for Research in Nervous and Mental Disease",
year="1992",
author="Mendelson, J. H. and Mello, N. K. and Teoh, S. K. and Lukas, Scott E. and Phipps, W. and Ellingboe, J. and Palmieri, S. L. and Schiff, I.",
volume="70",
number="",
pages="131-155",
abstract="<p>[Abstract unavailable]</p><p>Language: en</p>",
language="en",
issn="0091-7443",
doi="",
url="http://dx.doi.org/"
}