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Wong, Matthew L., Gregory Peters, Joshua W. Joseph, Arlene Chung, و Leon D. Sanchez. "Salivary Cortisol Concentrations, Grit, and the Effect of Time." AEM Educ Train 2019.

Wong, Matthew L., et al. "Salivary Cortisol Concentrations, Grit, and the Effect of Time." AEM Educ Train 2019.