1 Anasthesie and Intensiv Care Unit, University Hospital of Giessen and Marburg Campus Marburg, Philipps- Universitat Marburg, Marburg, Germany.
2 University Hospital of Giessen and Marburg Campus Marburg, Philipps- Universitat Marburg, Gastroenterology, Endocrinology, Metabolism and Clinical Infectiology; Interdisciplinary Center of Ultrasound Diagnostics, Marburg, Germany.
3 Institute of Pathology and Cytology, University Hospital of Giessen and Marburg Campus Marburg, Philipps- Universitat Marburg, Marburg, Germany.