| Affiliation: | 1. Massachusetts General Hospital, Department of Radiology, 55 Fruit Street, Boston, MA 02114;2. Harvard University T.H. Chan School of Public Health, Department of Epidemiology, 677 Huntington Ave, Boston, MA 02115;1. Department of Diagnostic and Interventional Radiology and Neuroradiology, University Hospital Essen, Hufelandstrasse 55, 45147 Essen, Germany;2. Department of Radiology, German Cancer Research Center, Heidelberg, Germany;3. Clinic of Neurology, University Hospital Essen, Essen, Germany;1. The University of Texas MD Anderson Cancer, Department of Diagnostic Radiology, Division of Diagnostic Imaging, 1515 Holcombe Blvd., Unit 1350, Houston, TX 77030;2. The University of Texas MD Anderson Cancer, Department of Biostatistics, Houston, Texas |
