HARDING, T. M. Determining the Concentration of Morphine and Codeine in Poppy Seeds for Drug Test Defense. Proceedings of the West Virginia Academy of Science, [S. l.], v. 92, n. 1, 2020. DOI: 10.55632/pwvas.v92i1.676. Disponível em: https://pwvas.org/index.php/pwvas/article/view/676. Acesso em: 13 may. 2024.