1 Department of Radiation Oncology, Columbia University Vagelos College of Physicians and Surgeons and NewYork-Presbyterian, 622 West 168th Street, BNH B011, New York, NY 10032, USA; Herbert Irving Comprehensive Cancer Center, Columbia University Vagelos College of Physicians and Surgeons and NewYork-Presbyterian, 1130 St Nicholas Ave, New York, NY 10032, USA.
2 Department of Neurosurgery, Weill Cornell Medical Center and NewYork-Presbyterian Hospital, New York City, NY, USA.
3 Department of Neurological Surgery, Oregon Health & Sciences University, 3181 SW Sam Jackson Pkwy, Portland, OR 97239, USA.
4 Department of Neurosurgery, Yale School of Medicine, New Haven, CT, USA; Department of Hematology and Stem Cell Transplantation, West German Cancer Center (WTZ), National Center for Tumor Diseases (NCT) West, University Hospital Essen, University of Duisburg-Essen, Essen, Germany.
5 Herbert Irving Comprehensive Cancer Center, Columbia University Vagelos College of Physicians and Surgeons and NewYork-Presbyterian, 1130 St Nicholas Ave, New York, NY 10032, USA; Department of Neurological Surgery, Vagelos College of Physicians and Surgeons, Columbia University Irving Medical Center, 710 West 168th Street, New York, NY 10032, USA.
6 Department of Radiation Oncology, Columbia University Vagelos College of Physicians and Surgeons and NewYork-Presbyterian, 622 West 168th Street, BNH B011, New York, NY 10032, USA; Herbert Irving Comprehensive Cancer Center, Columbia University Vagelos College of Physicians and Surgeons and NewYork-Presbyterian, 1130 St Nicholas Ave, New York, NY 10032, USA. Electronic address: tjw2117@cumc.columbia.edu.