Singh, A. K. M., F. T. Mirza, P. Y. Kek, A. Lee, and A. Suhaimi. “A Feasibility Study of an Outpatient Pulmonary Exercise Training Program (Opetp) For Post Covid-19 Patients: Post-COVID Exercise Training”. Journal of Current Medical Research and Opinion, vol. 9, no. 03, Mar. 2026, pp. 4657-69, doi:10.52845/CMRO/2026/9-3-1.