Ferreira Duarte, M., M. Barata Raposo, P. Fonseca da Silva Farinha Rodrigues, and M. Castelo Branco. “Measuring Empathy in Medical Students, Gender Differences and Level of Medical Education: An Identification of a Taxonomy of Students”. Medical Education Research Journal, Vol. 5, no. 20, Oct. 2016, pp. 253-60, doi:10.1016/j.riem.2016.04.007.