1. Department of Neurosurgery, Hospital General Universitario de Valencia, Valencia, Spain;
2. Department of Anesthesiology, Hospital 9 de Octubre de Valencia, Valencia, Spain;
3. Instituto de Medicina Legal de Valencia (IMLV), Valencia, Spain;
4. Department of Thoracic Surgery, Hospital General Universitario de Valencia, Valencia, Spain;
5. Medical School, University College London, London, UK