1. Department of Public Health, Erasmus University Medical Center, Rotterdam, The Netherlands.
2. Department of Neurosurgery, University Neurosurgical Center Holland (UNCH), Leiden University Medical Center & Haaglanden Medical Center & HAGA Teaching Hospital, Leiden/The Hague, The Netherlands.
3. Department of Biomedical Data Sciences, Leiden University Medical Center, Leiden, The Netherlands.
4. Institute for Global Health and Epidemiology, Department of Public Health, Trnava University, Trnava, Slovakia.