Turato, Egberto Ribeiro. “ Qualitative and Quantitative Methods in Health: Definitions, Differences and Research Subjects ”. Revista de Saúde Pública 39, no. 3 (June 1, 2005): 507–514. Accessed April 28, 2024. https://www.revistas.usp.br/rsp/article/view/31896.