Mohammed Y. Elhamrawy, “Effect of Tai Chi versus Aerobic Training on Improving Hand Grip Strength, Fatigue, and Functional Performance in Older Adults Post-COVID-19: a randomized controlled trial”, J Popl Ther Clin Pharmacol, vol. 30, no. 7, pp. 190–198, Apr. 2023, doi: 10.47750/jptcp.2023.30.07.024.