John H. Shin, MD
Chief of Spine Neurosurgery
Massachusetts General Hospital
Kingdon-Saylor Family Endowed Chair in Spine Neurosurgery
Boston, MA
Timothy F. Witham, MD, FAANS, FACS
Professor of Neurosurgery and Orthopaedic Surgery
Director, The Johns Hopkins Bayview Spine Program
Director, The Johns Hopkins Neurosurgery Spinal Fusion Laboratory
Associate Program Director, Johns Hopkins Neurosurgery Residency
Baltimore, MD
