Medhat, H.; Sorour, O.; Ayoub, B.; El-Fiki, A. A. S.; Salah, A. M.; Marei, A. A. A. E. The Early Effect of Anterior Cervical Discectomy and Fusion on Adjacent Segment Degeneration in Cases of Cervical Degenerative Disease: A Clinical and Retrospective Study. Open Access Maced J Med Sci 2022, 10, 2536-2542.