[1] G Gaslini Inst Children, Dept Paediat Gastroenterol, I-16147 Genoa, Italy
[2] G Gaslini Inst Children, Dept Paediat Haematol, I-16147 Genoa, Italy
[3] G Gaslini Inst Children, Dept Pathol, I-16147 Genoa, Italy
[4] Osped Galliera, Dept Nucl Med, Genoa, Italy