1. Department of Internal Medicine VIUniversity HospitalTübingenGermany
2. Department of SurgeryCopenhagen University Hospital HerlevHerlevDenmark
3. Institute of Molecular Pathology and ImmunologyUniversity of PortoPortoPortugal
4. Faculty of MedicineUniversity of PortoPortoPortugal
5. Department of Medicine IIUniversity HospitalMunichGermany
6. Department of Medical and Surgical SciencesUniversity of BolognaBolognaItaly