NWOKO, Chris O.; MGBEAHURUIKE, Leo. Heavy Metal Contamination of Ready-to-use Herbal Remedies in South Eastern Nigeria. Pakistan Journal of Nutrition, Pakistan, v. 10, n. 10, p. 959–964, 2011. DOI: 10.3923/pjn.2011.959.964. Disponível em: https://pjnonline.org/pjn/article/view/1516. Acesso em: 15 aug. 2025.