Comparison of the Incidence of Fragmented QRS Complex on Electrocardiogram in Patients with Connective Tissue Disorders and Healthy Individuals. Life and Science, [S. l.], v. 6, n. 2, p. 07, 2025. DOI: 10.37185/LnS.1.1.796. Disponível em: https://lifenscience.org/index.php/life-and-science/article/view/796. Acesso em: 17 oct. 2026.