Abo Elyazed , T. I., Abd El-Hakim, A. A. E.-M., Saleh, O. I., Sonbol, M. M. F., Eid, H. A., Moazen, E., … Elfeky, S. E. F. . (2024). Diaphragmatic strengthening exercises for patients with post COVID-19 condition after mild-to-moderate acute COVID-19 infection: a randomized controlled study. Journal of Rehabilitation Medicine, 56, jrm25491. https://doi.org/10.2340/jrm.v56.25491