Fig. 2From: Oral health of 12-year-old children in Quito, Ecuador: a population-based epidemiological surveyMap of Quito indicating the areas of schools participating (source: adapted from Wikimedia Commons. Author: H. F. Lopez (2000). Source: http://commons.wikimedia.org/wiki/File:Mapa_de_Parroquias_de_Quito.jpgBack to article page