1. Department of General and Transplant Surgery, Medical University of Innsbruck, Innsbruck, Austria.
2. SisTer SpA, Palazzo Pignano, Italy.
3. KMT Laboratory, Medical University of Innsbruck, Innsbruck, Austria.
4. University of Turin, Turin, Italy.
5. University Clinic for Paediatrics and Adolescent Medicine, Vienna Medical University, Vienna, Austria.
6. Research and Development, Fresenius Medical Care Deutschland GmbH, Bad Homburg, Germany.