Santos, J. P. A. dos, A. L. P. Ribeiro, D. Andrade-Junior, e M. S. Marcolino. “Prevalence of Electrocardiographic Abnormalities in Primary Care Patients According to Sex and Age Group. A Retrospective Observational Study”. São Paulo Medical Journal, vol. 136, nº 1, fevereiro de 2018, p. 20-28, https://periodicosapm.emnuvens.com.br/spmj/article/view/1411.