1. Department of Medicine I Paracelsus Medical University SalzburgAustria
2. Institute of Pathology Paracelsus Medical University SalzburgAustria
3. Laboratory for Tumour Biology and Experimental Therapies (TREAT) Institute of Physiology and Pathophysiology Paracelsus Medical University Salzburg Austria
4. Division of Research and Development for Minimally Invasive Treatment Cancer Center Keio University School of Medicine Tokyo Japan
5. Department of Endoscopy Saku Central Hospital Advanced Care Center Nagano Japan