Das, Kamol Chandra, et al. “Effect of Slow Breathing Exercise on Time Domain Heart Rate Variability in Transfusion Dependent Thalassemic Patients”. Bangabandhu Sheikh Mujib Medical College Journal, vol. 1, no. 2, Oct. 2023, pp. 65-69, doi:10.3329/bsmmcj.v1i2.69338.