[1] University Medical Center Utrecht,Division of Imaging and Cancer
[2] University of Utrecht,Division of Imaging and Cancer, Department of Radiotherapy
[3] University Medical Center Utrecht,Division of Spine, Department of Orthopaedics
[4] University of British Columbia and Vancouver General Hospital,Department of Orthopaedic surgery
[5] University Medical Center Utrecht,Department of Corporate Communications
[6] University Medical Center Utrecht,undefined