N. Batool, K. Shaikh, F. Fatima, S. Abubakar, F. Jawed, and T. Usama, “Frequency of Low Heart Rate Reserve and Mean Arterial Pressure in Patients with Positive Exercise Tolerance Test”, IJBR, vol. 3, no. 4, pp. 1305–1312, Apr. 2025, doi: 10.70749/ijbr.v3i4.2977.