L. Acuña-Medina, Y. Arias-Quispe, Y. Espeza-Veláquez, B. Meneses-Claudio, H. Matta-Solis, E. Matta-Solis "Empathy in Nursing Students that do the Non-Medical Internship in Three Universities in Lima, 2019", Advances in Science, Technology and Engineering Systems Journal, vol. 5, no. 6, pp. 944-950 (2020).