Riveros Pérez, Efraín, Francisco García, Adriana Valero, Marcela Roa, and Pilar Rojas. 2012. “Comparison of Cardio-Respiratory Physiological Variables During Exercise in Medical Students”. RFS Revista Facultad De Salud 4 (1):19-27. https://doi.org/10.25054/rfs.v4i1.116.