1.
Firdaus FA, Susilawati S. Biofeedback to Improve Heart Rate Variability in Patient with Coronary Artery Disease. Jurnal Ilmiah Penelitian Kesehatan [Internet]. 2026 Jun. 1 [cited 2026 Jun. 4];5(2):580-5. Available from: https://genius.inspira.or.id/index.php/indogenius/article/view/1027