1. Department of Health Research, Christus Muguerza del Parque Hospital University of Monterrey Chihuahua Mexico
2. PhD Program in Molecular Medicine, Human Medicine and Health Sciences Academic Unit Zacatecas Autonomous University Zacatecas Mexico
3. Telethon Pediatric Oncology Hospital Querétaro Mexico
4. Karolinska University Hospital Stockholm Sweden
5. Department of Global Pediatric Medicine St. Jude Children's Research Hospital Memphis Tennessee USA