RosenornJHansenEBRosenornMA: Anterior cervical discectomy with and without fusion. A prospective study. J Neurosurg59 (2): 252–255, 1983.
2.
SavolainenSRinneJHernesniemiJ: A prospective randomized study of anterior single-level cervical disc operations with long-term follow-up: Surgical fusion is unnecessary. Neurosurgery43(1): 51–55, 1998.