1. Center for Health Studies, Universidad del Valle de Guatemala , Guatemala City, Guatemala Department , Republic of Guatemala
2. Paul G. Allen School for Global Health, Washington State University , Pullman, Washington , USA
3. Division of Healthcare Quality Promotion, Centers for Disease Control and Prevention , Atlanta, Georgia , USA
4. Central America Regional Office, Centers for Disease Control and Prevention , Guatemala City, Guatemala Department , Republic of Guatemala
5. Washington State University Global Health–Kenya , Nairobi, Nairobi County , Kenya