W. M. A. Wan Haron and M. N. Adon, “Development of Electrocardiogram (ECG) Monitoring System using IoT”, EEEE, vol. 4, no. 2, pp. 442–448, Oct. 2023, Accessed: Jul. 18, 2024. [Online]. Available: https://publisher.uthm.edu.my/periodicals/index.php/eeee/article/view/12727