Oliveira, Maria Ivoneide Veríssimo de, Sarah Maria Fraxe Pessoa, Rosiléa Alves de Sousa, and Maria Rosimar de Jesus Barbosa. 2002. “Maternal Mortality: Study of the Epimemic Profile in a School Maternity”. Rev Rene 3 (1). http://www.periodicos.ufc.br/rene/article/view/5723.