1. Biochemistry and Molecular Biology, Universidad Panamericana School of Medicine, Mexico City, Mexico;
2. Breast Center, Tecnologico de Monterrey, Monterrey N.L., Mexico;
3. Hospital Regional ISSSTE Pueblo Mexico, Puebla, Mexico;
4. Instituto Nacional de Rehabilitación, Mexico City, Mexico;
5. Instituto Nacional De Cancerologia, Mexico City, Mexico;
6. Instituto Nacional de Cancerología, Mexico City, Mexico;
7. Instituto Nacional de Rehabilitacion, Mexico City, Mexico;