1 Department of Medicine (Zimmer), Marienhausklinik St. Josef Kohlhof, Neunkirchen, Germany; Departments of Medicine II (Zimmer, Lammert) and General, Visceral, Vascular, and Pediatric Surgery (Glanemann), Saarland University Medical Center, Saarland University, Homburg, Germany vincent.zimmer@gmx.de.
2 Department of Medicine (Zimmer), Marienhausklinik St. Josef Kohlhof, Neunkirchen, Germany; Departments of Medicine II (Zimmer, Lammert) and General, Visceral, Vascular, and Pediatric Surgery (Glanemann), Saarland University Medical Center, Saarland University, Homburg, Germany.