D. L. Walcutt, “Chocolate and Mood Disorders,” World of Psychology (blog), Psych Central website, accessed March 19, 2018, http://psychcentral.com/blog/archives/2009/04/27/chocolate-and-mood-disorders/; A. A. Sunni and R. Latif, “Effects of Chocolate Intake on Perceived Stress; A Controlled Clinical Study,” International Journal of Health Sciences (Qassim) 8, no. 4 (October 2014): 393–401.
