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Gaber, Tilman J., Vita L. S. Dingerkus, Molly J. Crockett, Sarah Bubenzer-Busch, Katrin Helmbold, Cristina L. Sánchez, Brigitte Dahmen, Beate Herpertz-Dahlmann, i Florian D. Zepf. "Studying the Effects of Dietary Body Weight-adjusted Acute Tryptophan Depletion On Punishment-related Behavioral Inhibition." Food Nutr Res 2015.

Gaber, Tilman J., et al. "Studying the Effects of Dietary Body Weight-adjusted Acute Tryptophan Depletion On Punishment-related Behavioral Inhibition." Food Nutr Res 2015.