Barros, Marilisa Berti de Azevedo. “ Incidence of Surgery in Ribeirão Preto, SP, Brazil ”. Revista de Saúde Pública 16, no. 5 (October 1, 1982): 268–281. Accessed May 15, 2024. https://www.revistas.usp.br/rsp/article/view/23132.