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Villarruel-López A, Márquez-González M, Garay-Martínez LE, Zepeda H, Castillo A, Mota de la Garza L, Murano EA, Torres-Vitela R.Villarruel-López A, et al. Among authors: castillo a.J Food Prot. 2003 Aug;66(8):1374-8. doi: 10.4315/0362-028x-66.8.1374.J Food Prot. 2003.PMID: 12929822Free article.