1. Department of General, Visceral, Trauma and Thoracic Surgery, Klinikum der Stadt Ludwigshafen, Ludwigshafen am Rhein, Germany
2. Department of Hand, Plastic, and Reconstructive Surgery, Trauma Center Ludwigshafen, Ludwigshafen, Germany
3. Department of Plastic and Hand Surgery, University of Heidelberg, Heidelberg, Germany