Liu, Wenzhong, and Kaiyang Liu. “Diabetes, Obesity, Physical Inactivity and COVID-19 Confirmed Cases, Deaths Correlations across the United States”. Journal of Student Research 11, no. 4 (November 30, 2022). Accessed November 23, 2024. https://www.jsr.org/hs/index.php/path/article/view/3504.