1. Molecular Medicine Division, Centro de Investigación Biomédica de Occidente (CIBO); Instituto Mexicano del Seguro Social (IMSS); Guadalajara Mexico
2. Doctorate Program in Human Genetics; Universidad de Guadalajara; Guadalajara Mexico
3. Surgical Research Division; CIBO, IMSS; Guadalajara Mexico
4. Medicine School; Universidad Autónoma de Nuevo León; Monterrey Mexico
5. Centro de Investigación Biomédica de Oriente; IMSS; Puebla Mexico
6. Medical Research Unit in Metabolic Diseases, Centro Médico Nacional Siglo XXI; IMSS; Mexico city Mexico
7. Medical Research Unit in Clinical Epidemiology, Hospital General; IMSS; Durango Mexico