Role CA-2 Resident Category Clinical Publications Cost Analysis of Single-Level Lumbar Fusions. Beckerman D, Esparza M, Lee SI, Berven SH, Bederman SS, Hu SS, Burch S, Deviren V, Tay B, Mummaneni PV, Chou D, Ames CP Outcomes and Quality of Life Improvement After Multilevel Spinal Fusion in Elderly Patients. Ibrahim JM, Singh P, Beckerman D, Hu SS, Tay B, Deviren V, Burch S, Berven SH