Domingos, M. A. M., A. C. Goulart, P. A. Lotufo, I. J. M. Benseñor, and S. M. de O. Titan. “Chronic Kidney Disease — Determinants of Progression and Cardiovascular Risk. PROGREDIR Cohort Study: Design and Methods”. São Paulo Medical Journal, vol. 135, no. 2, May 2017, pp. 133-9, https://periodicosapm.emnuvens.com.br/spmj/article/view/769.