1. 1 Department of Medicine, Indiana University School of Medicine, Indianapolis, IN
2. 3 Western Honduras Gastric Cancer Prevention Initiative, Hospital de Occidente, Santa Rosa de Copan, Honduras
3. 2 Universidad Nacional Autónoma de Honduras, Tegucigalpa, Honduras
4. 4 Unidad de Gastroenterologia, Hospital Manuel Nuñez Tovar, Monagas, Venezuela
5. 5 Universidad Evangélica de El Salvador, San Salvador, El Salvador
6. 6 Division of Gastroenterology and Hepatology, The University of Alabama at Birmingham, Birmingham, AL
7. 7 Division of Preventive Medicine, Department of Medicine, The University of Alabama at Birmingham, Birmingham, AL