Viviana Chavez, Laboratorio Biosocial Tonalli ltda, Tiburcio Saavedra, Temuco, Chile
Lenin Ochoa-de-la-Paz, Department of Biochemistry, Faculty of Medicine, Universidad Nacional Autónoma de México, Mexico City, Mexico
Jorge Parodi, Laboratorio Biosocial Tonalli ltda, Tiburcio Saavedra, Temuco, Chile