Cortés Hernández S, Granados Vázquez BA. The national laboratory of oral materials, concepts, antecedents, code of ethics and documentation protocol. Boitatá [Internet]. 2020 Jun. 5 [cited 2024 Nov. 21];15(29):31-55. Available from: https://ojs.uel.br/revistas/uel/index.php/boitata/article/view/40182