Alzate-Granados, Juan, Armando Solarte, Pedro Lopez, and Ernesto Barceló. “Breathing Technique in Pain and Cognitive Function: A Systematic Review of the Literature”. Journal of Applied Cognitive Neuroscience 1, no. 1 (December 7, 2020): 25-42. Accessed October 26, 2021. https://revistascientificas.cuc.edu.co/JACN/article/view/3330.