Miranda, Marina Jorge de, Cláudia Costa, Paula Santana, and Lígia Vizeu Barrozo. “Spatial Association Between Socioeconomic Variables and Risk Related to Pre-Term Births in Metropolitan Region of Sao Paulo (MRSP) and Lisbon Metropolitan Area (AML)”. Saúde e Sociedade 23, no. 4 (December 1, 2014): 1142-1153. Accessed February 27, 2021. https://www.revistas.usp.br/sausoc/article/view/104283.