title: Health care in big cities: Mexico City.
authors.forename: G F
authors.initials: GF
authors.lastname: Ortiz
mesh_terms: D006077:Government Agencies; D006296:Health Services / Q000600:supply & distribution*; D006298:Health Services Administration; D008800:Mexico; D012040:Regional Health Planning; D012041:Regional Medical Programs; D014505:Urban Population; D014837:Voluntary Health Agencies