Validation of the HEART Score in Patients with Undifferentiated Chest  Pain: A Prospective Cohort Study. Academia Journal of Medicine, [S. l.], v. 9, n. 1, p. 30–36, 2026. DOI: 10.48165/ajm.2026.9.01.8. Disponível em: https://medjournal.co.in/index.php/ajm/article/view/273. Acesso em: 21 mar. 2026.