Gastrointestinal Endoscopy
Gastrointestinal Endoscopy > 2012 > 76 > 6 > 1116-1123
Gastrointestinal Endoscopy > 2012 > 76 > 6 > 1238-1241
Gastrointestinal Endoscopy > 2012 > 76 > 6 > 1182-1187
Gastrointestinal Endoscopy > 2012 > 76 > 6 > 1188-1196