Gastrointestinal Endoscopy
Gastrointestinal Endoscopy > 2008 > 67 > 1 > 136-140
Gastrointestinal Endoscopy > 2008 > 67 > 1 > 132-135
Gastrointestinal Endoscopy > 2008 > 67 > 1 > 61-67
Gastrointestinal Endoscopy > 2008 > 67 > 1 > 35-39
Gastrointestinal Endoscopy > 2008 > 67 > 1 > 44-50