Astudillo-Sarmiento, J.C. and Carpio-Toro, I.L. 2020. Deep breathing practice for academic stress in students at the National University of Education. Killkana Salud y Bienestar. 4, 3 (Dec. 2020), 7–14. DOI:https://doi.org/10.26871/killcanasalud.v4i3.602.