title: What is Needed to Improve Food Sales in Schools? Food Vendors' Opinion from El Salvador.
authors.affiliation: School Health and Nutrition Unit, Department of Child Education and Protection, Save the Children Federation Inc. , La Paz , Bolivia.
authors.forename: Caroline
authors.initials: C
authors.lastname: Hilari
authors.affiliation: Save the Children International, El Salvador Country Office , San Salvador , El Salvador.
authors.forename: Margarita
authors.initials: M
authors.lastname: Franco
keywords: child obesity; food vendors; sale regulations; save the children; school nutrition