1. Department of Internal Medicine I, University Clinics Salzburg, Paracelsus Medical University, Salzburg, Austria
2. Department of Medicine II, Kepler Medical University, Linz, Austria
3. Endoscopy Division, Nizhniy Novgorod Cancer Hospital, Nizhniy Novgorod, Russian Federation
4. Institute of Pathology, Paracelsus Medical University/Salzburger Landeskliniken (SALK), Salzburg, Austria
5. Laboratory for Tumour Biology and Experimental Therapies (TREAT), Institute of Physiology and Pathophysiology, Paracelsus Medical University, Salzburg, Austria
6. Vortex Photonics, Planegg, Germany
7. Department of Surgery, University Clinics Salzburg, Paracelsus Medical University, Salzburg, Austria