Controversies in Spine SurgeryInterbody Cage Versus Structural Allograft is Preferred for a 1-Level or 2-Level Anterior Cervical Discectomy and Fusion in a NonsmokerHussain, Ibrahim MD; Baaj, Ali A. MDAuthor Information Department of Neurological Surgery, New York Presbyterian Hospital, Weill Cornell Medical College, New York, NY A.A.B. declares royalties from Thieme Publishers. The authors declare no conflict of interest. Reprints: Ali A. Baaj, MD, Department of Neurological Surgery, New York Presbyterian Hospital, Weill Cornell Medical College, 525 East 68th Street, New York, NY 10065 (e-mail: email@example.com). Received August 7, 2016 Accepted June 19, 2018 Online date: April 29, 2020 Clinical Spine Surgery: May 2020 - Volume 33 - Issue 4 - p 134-136 doi: 10.1097/BSD.0000000000000754 Buy Metrics © 2020 by Lippincott Williams & Wilkins, Inc.