Neurosurgery 2013 Oct;73 Suppl 1:57-65
*Department of Neurologic Surgery, Mayo Clinic, Rochester, Minnesota ‡Department of Neurological Surgery, The Ohio State University Medical Center, Columbus, Ohio §Division of Neurosurgery, Baystate Medical Center, Springfield, Massachusetts ‖Department of Neurosurgery, Tufts University School of Medicine, Boston, Massachusetts ¶The Norman M. Rich Department of Surgery, Uniformed Services University, Bethesda, Maryland.