1. Laboratory of Surgical NeuroAnatomy; Human Anatomy and Embryology Unit, Faculty of Medicine, Universitat de Barcelona; Barcelona Spain
2. Department of Clinical Medical Sciences and Applied Molecular Medicine Institute; CEU San Pablo University School of Medicine; Madrid Spain
3. Department of Anesthesiology; Madrid-Montepríncipe University Hospital; Madrid Spain
4. VisualMed System Group, Human Anatomy Department; University of Salamanca; Salamanca Spain
5. Surgical Specialties Department; University of Valencia School of Medicine; Valencia Spain
6. Anesthesia Critical Care and Pain Management Department; Valencia General University Hospital; Valencia Spain