Leite, Luana Oliveira, and Priscila Ribas Farias Costa. “Homocysteine ​​and Cysteine: Markers of Cardiovascular Risk in Adolescents”. Adolescência E Saúde, vol. 15, no. 4, Jan. 2018, pp. 104-13, https://adolescenciaesaude.com/index.php/aes/article/view/225.