Medeiros, T. M. D. de, K. C. Ortega, D. Mion Júnior, K. Nonoyama, and O. C. de O. Barretto. “Normal Erythrocyte Calpain I Activity on Membrane Proteins under Near-Physiological Conditions in Patients With Essential Hypertension”. São Paulo Medical Journal, vol. 120, no. 1, Jan. 2002, pp. 5-8, https://periodicosapm.emnuvens.com.br/spmj/article/view/2670.