Vegad, A. M., Y. K. Kacha, M. S. Varu, H. B. Mehta, and C. J. Shah. “Effects of Mobile Phone Radiation on Heart Rate Variability of Healthy Young Subjects”. International Journal of Clinical and Experimental Physiology, Vol. 2, no. 1, Jan. 2015, pp. 23-28, https://ijcep.org/index.php/ijcep/article/view/31.