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\bibitem{Eskelson_etal1980} Eskelson, C. D., Hameroff, S. R., \& Kanel, J. S. (1980). Ethanol increases serum beta-Endorphin levels in rats. \textit{Anesthesia and Analgesia}, \textit{59}(7; 07/1980), 537--538.

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