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\bibitem{Genazzi_etal1982} Genazzi, A. R., Nappi, G., Facchinetti, F., Mazzella, G. L., Parrini, D., Sinforani, E., et al. (1982). Entral deficiency of beta-endorphin in alcohol addicts. \textit{Journal of Clinical Endocrinology and Metabolism}, \textit{55}(3), 583--586.

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