Fig. 1From: Tracking pregnant women displacements in Sao Paulo, Brazil: a complex systems approach to regionalization through the emergence of patternsRegional Health Department XIII within São Paulo state and Brazil. Legends: In green: Brazil in South America with a square showing the São Paulo region. In gray: São Paulo state health regions. Highlighted in red, the Regional Health Department XIII centered in Ribeirão Preto. Source: [28, 29]Back to article page