J. . Sánchez Betancourt, J. A. . Guzmán Cortés, R. . Avilés Reyes, L. Ángel . Llamas Alonso, and M. R. . Ávila Costa, “Effect of 5-hydroxytryptophan and melatonin supplementation on mood, sleep and cognition in adult patients with depression”, AVFT, vol. 41, no. 10, Apr. 2023.