[1] Catholic Univ Louvain, St Luc Univ Hosp, Starzl Abdominal Transplant Unit, B-1200 Brussels, Belgium
[2] Catholic Univ Louvain, St Luc Univ Hosp, Dept Radiol, B-1200 Brussels, Belgium
[3] Catholic Univ Louvain, St Luc Univ Hosp, Dept Pathol, B-1200 Brussels, Belgium
[4] Catholic Univ Louvain, Inst Stat, B-1200 Brussels, Belgium
[5] Catholic Univ Louvain, St Luc Univ Hosp, Dept Pediat Surg & Liver Transplantat, B-1200 Brussels, Belgium