1. Department of Neurosurgery, Brigham and Women's Hospital, Harvard Medical School, Boston, Massachusetts, USA;
2. Department of Global Health and Social Medicine, Program for Global Surgery and Social Change, Harvard Medical School, Boston, Massachusetts, USA;
3. Department of Neurosurgery, Oslo University Hospital-Rikshospitalet, Oslo, Norway;
4. Department of Community Medicine and Global Health, Institute of Health and Society, University of Oslo, Oslo, Norway;
5. Department of Neurosurgery, University Teaching Hospital, Lusaka, Zambia;
6. Department of Neurology, Center for Global Health, Technical University of Munich, Munich, Germany;