1. Department of Neurosciences, Institute of Human Anatomy University of Padova Padova Italy
2. Division of Gastroenterology and Hepatology, Department of Medicine Perelman School of Medicine at the University of Pennsylvania Philadelphia Pennsylvania USA
3. Department of Bioengineering, School of Engineering and Applied Sciences the University of Pennsylvania Philadelphia Pennsylvania USA
4. Department of Pathology and Laboratory Medicine Perelman School of Medicine at the University of Pennsylvania Philadelphia Pennsylvania USA
5. Center for Engineering MechanoBiology The University of Pennsylvania Philadelphia Pennsylvania USA
6. Department of Pathology New York University Grossman School of Medicine New York New York USA