[1] Hop Cochin, Dept Biostat, F-75674 Paris, France
[2] Hop Cochin, Dept Surg, F-75674 Paris, France
[3] Hop Cochin, Dept Anesthesiol, F-75674 Paris, France
[4] Hop Bicetre, Dept Pediat Surg, Le Kremlin Bicetre, France
[5] Hop Bicetre, Dept Pediat Hepatol, Le Kremlin Bicetre, France
[6] Hop Bicetre, Dept Pediat Intens Care, Le Kremlin Bicetre, France
[7] Hop Bicetre, Dept Anesthesiol, Le Kremlin Bicetre, France
[8] Hop Bicetre, Dept Pathol, Le Kremlin Bicetre, France
[9] Hop Bicetre, Dept Pediat Radiol, Le Kremlin Bicetre, France