Al-Shafiey, M. A., I. Kasb, Y. Shaheen, H. M. A. M. Eletr, and A. S. Emara. “The Operative Correction of Pectus Deformities: A Prospective Cohort Study”. The Egyptian Cardiothoracic Surgeon, Vol. 8, no. 2, Mar. 2026, pp. 41 -52, https://journals.escts.net/ects/article/view/362.