Quality of cocaine seized in 1997 in the street-drug market of São Paulo city, Brazil. Revista Brasileira de Ciências Farmacêuticas, [S. l.], v. 39, n. 1, p. 71–75, 2003. DOI: 10.1590/S1516-93322003000100007. Disponível em: https://revistas.usp.br/rbcf/article/view/43841.. Acesso em: 17 jul. 2024.