[1] VU University Medical Centre,Department of Epidemiology and Biostatistics
[2] The EMGO+ Institute for Health and Care Research,Faculty of Earth and Life Sciences
[3] The George Institute for Global Health,Department of Orthopedic Surgery
[4] University of Sydney,Department of Neurosurgery
[5] VU University Amsterdam,Department of Neurosurgery
[6] VUmc,undefined
[7] LUMC,undefined
[8] Medical Centre Haaglanden,undefined