A study on the stability of anhydroecgonine methyl ester (crack biomarker), benzoylecgonine, and cocaine in human urine . Archives of Clinical Psychiatry, [S. l.], v. 35, n. supl.1, p. 17–20, 2008. DOI: 10.1590/S0101-60832008000700005. Disponível em: https://revistas.usp.br/acp/article/view/17176.. Acesso em: 29 jun. 2024.