Instituto Nacional de Salud Pública, México
Research Coordinator
World Food Programme
Nutrition Advisor
Rollins School of Public Health at Emory University
Adjunct Professor
World Health Organization
Scientist
FAO
Deputy Director
Centers for Disease Control and Prevention
Health Scientist Officer
Instituto Nacional de Salud Pública, México
Investigator in Medical Sciences - B
World Food Programme
Chief, Nutrition
Centers for Disease Control and Prevention
Epidemic Intelligence Service Officer
University of Georgia - Franklin College of Arts and Sciences
Emory University
Duke University