1. Department of Anesthesiology, Consorci Sanitari Integral Hospital Sant Joan Despí Moisès Broggi and Hospital General de l'Hospitalet Barcelona Spain
2. Ciber Fisiopatología Obesidad y Nutrición (CIBERobn) Instituto Salud Carlos III Madrid Spain
3. Department of Psychobiology and Methodology of Health Science Universitat Autònoma de Barcelona Barcelona Spain
4. Department of Anesthesiology, Hospital del Mar. IMIM (Hospital del Mar Medical Research Institute) Universitat Autònoma de Barcelona Barcelona Spain