Alves, C., M. S. D. da Silva, L. M. Pinto, M. B. P. Toralles, and J. Tavares-Neto. “Definition and Use of the Variable ‘race’ by Medical Students in Salvador, Brazil”. São Paulo Medical Journal, vol. 128, no. 4, July 2010, pp. 206-10, https://periodicosapm.emnuvens.com.br/spmj/article/view/1792.