1. From the Institute of Neuroradiology, Charité–Universitätsmedizin Berlin, Germany (T.L.)
2. Department of Neuroradiology, Rigshospitalet, University of Copenhagen, Denmark (M.H.)
3. Neuroradiology, North Bristol National Health Service Trust, Southmead Hospital, United Kingdom (R.C.)
4. Mentice AB, Gothenburg, Sweden (J.L.)
5. Medical Education, School of Medicine (P.H.)
6. University College Cork, Ireland; and Department of Cardiovascular Radiology, National Hospital, Copenhagen University, Denmark (P.L.).
7. Application of Science to Simulation-Based Education and Research on Training (ASSERT) Centre and School of Medicine (A.G.G.)