Mohamed, E. A. A., Aly, N. A. Z., El-Saeed, T. M., Ibrahim, M. A. (2021). 'Manual Hyperinflation, A Novel Technique in Physiotherapy of Pediatric Post Cardiac Surgery Patients', The Egyptian Journal of Hospital Medicine, 85(1), pp. 2907-2911. doi: 10.21608/ejhm.2021.191390