Deep-Breathing Relaxation as an Adjunct to Acute Pain Management in Patients with Acute Myocardial Infarction: A Two-Patient Case Study in an Intensive Cardiac Care Unit. International Journal of Advanced Health Science and Technology, [S. l.], v. 6, n. 5, p. 434–441, 2026. DOI: 10.35882/ijahst.v6i5.663. Disponível em: https://ijahst.org/index.php/ijahst/article/view/663. Acesso em: 26 oct. 2026.