Gastrointestinal Endoscopy
Gastrointestinal Endoscopy > 2008 > 68 > 1 > 105-110
Gastrointestinal Endoscopy > 2008 > 68 > 1 > 160-169
Gastrointestinal Endoscopy > 2008 > 68 > 1 > 84-90
Gastrointestinal Endoscopy > 2008 > 68 > 1 > 155-159
Gastrointestinal Endoscopy > 2008 > 68 > 1 > 170-173