1. Division of Cancer Biology University of Puerto Rico Comprehensive Cancer Center San Juan Puerto Rico USA
2. Analysis and Epidemiology Unit Coordinator / Biostatistician, Puerto Rico Central Cancer Registry, Division of Cancer Control and Population Sciences University of Puerto Rico Comprehensive Cancer Center San Juan Puerto Rico USA
3. Division of Cancer Control and Population Sciences University of Puerto Rico Comprehensive Cancer Center San Juan Puerto Rico USA
4. Ponce Health Sciences University School of Medicine Ponce Puerto Rico USA
5. Director of Division of Gastroenterology and Hepatology University of Alabama, Birmingham Birmingham Alabama USA
6. University of Puerto Rico Comprehensive Cancer Center San Juan Puerto Rico USA
7. Department of Medicine and Biochemistry University of Puerto Medical Sciences Campus San Juan Puerto Rico USA