Iqbal S, Iqbal S, Gul S, Shaukat A, and Saher K. “Heart Rate Variability- A Predictive Tool for Analysis of Autonomic Dysfunction in Covid-19 Vaccinated Individuals”. Esculapio Journal of SIMS, vol. 18, no. 3, Sept. 2022, pp. 310-4, doi:10.51273/esc22.2518314.