DEMIRKIRAN, Ahmet; YILMAZ, Mustafa; ŞIT, Ömer; ATICI, Adem; BARMAN, Hasan. The prognostic implications of a fragmented QRS pattern in patients diagnosed with heart failure. The European Research Journal, [S. l.], v. 9, n. 2, p. 428–436, 2023. DOI: 10.18621/eurj.1253438. Disponível em: https://eurj.org.tr/article/view/742. Acesso em: 5 apr. 2026.