Küttner Magalhães R, Moreira T, Pimentel R, Caetano C, Pedroto I
Department of Gastroenterology, Hospital Santo António, 59 Rua Dr Eduardo Santos Silva, Porto, Portugal.
Endoscopy. 2012;44 Suppl 2 UCTN:E421. doi: 10.1055/s-0031-1291696. Epub 2012 Dec 20.