Hernández-Silva, J. A., S. Moreno-Correa, and F. Moreno-Gómez. “Origin, Frequency, and Variability of Protostylid in Human Populations from Southwestern Colombia: A Systematic Literature Review”. Revista Facultad De Odontología Universidad De Antioquia, vol. 27, no. 1, Nov. 2015, pp. 108-26, doi:10.17533/udea.rfo.v27n1a6.