1 Gastroenterology and Multivisceral Transplant Unit, Department of Surgery, Oncology, and Gastroenterology, Padova University Hospital, Padova, Italy.
2 Thrombotic and Hemorrhagic Diseases Unit, General Internal Medicine, Padova University Hospital, Padova, Italy.
3 Anesthesiology and Intensive Care, Department of Medicine, Padova University Hospital, Padova, Italy.
4 Digestive Disease Section, Internal Medicine, Yale School of Medicine, and VA-Connecticut Healthcare System, New Haven/West Haven, CT, USA.