Kabir, Md Rasel, Noorzahan Begum, Sultana Ferdousi, Selina Begum, and Taskina Ali. “Heart Rate Variability in Hyperthyroidism”. Journal of Bangladesh Society of Physiologist 4, no. 2 (January 22, 2010): 51–57. Accessed December 23, 2025. https://www.banglajol.info/index.php/JBSP/article/view/4172.