Petersen, K., A. Freeman, P. Kris-Etherton, K. Williams Sr., K. Reddy, M. Aggarwal, N. Barnard, D. Ornish, C. Esselstyn Jr., K. Allen, and K. Aspry. “The Importance of a Healthy Lifestyle in the Era of COVID-19”. International Journal of Disease Reversal and Prevention, Vol. 3, no. 1, Jan. 2021, p. 10 pp, https://ijdrp.org/index.php/ijdrp/article/view/215.