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Editorial
Observation
Mauro Manno, Carmelo Barbera, Helga Bertani, Raffaele Manta, Vincenzo Giorgio Mirante, Emanuele Dabizzi, Angelo Caruso, Flavia Pigo, Giampiero Olivetti, Rita Conigliaro 
World J Gastrointest Endosc 4(2):28-32. Published online Feb 16, 2012. doi: 10.4253/wjge.v4.i2.28
Brief Article
Shouji Shimoyama, Toshihisa Ogawa, Toshiyuki Toma, Kousuke Hirano, Shuichi Noji 
World J Gastrointest Endosc 4(2):38-44. Published online Feb 16, 2012. doi: 10.4253/wjge.v4.i2.38