1. Department of Molecular Biology and Cardiovascular Disease's Genomic and Proteomic Study Group, Instituto Nacional de Cardiología Ignacio Chávez, Mexico City, Mexico.
2. Postgrad in Biological Sciences, Universidad Nacional Autónoma de México, Mexico City, Mexico.
3. Department of Interventional Cardiology, Instituto Nacional de Cardiología Ignacio Chávez, Mexico City, Mexico.
4. Epidemiologic and Health Service Research Unit, Aging Area, Instituto Mexicano del Seguro Social, Mexico City, Mexico.
5. Sociomedical Department, Instituto Nacional de Cardiología Ignacio Chávez, Mexico City, Mexico.