Gastrointestinal Endoscopy
Gastrointestinal Endoscopy > 1999 > 50 > 1 > 18-22
Gastrointestinal Endoscopy > 1999 > 50 > 1 > 79-81
Gastrointestinal Endoscopy > 1999 > 50 > 1 > 27-33
Gastrointestinal Endoscopy > 1999 > 50 > 1 > 53-57
Gastrointestinal Endoscopy > 1999 > 50 > 1 > 13-17
Gastrointestinal Endoscopy > 1999 > 50 > 1 > 41-46
Gastrointestinal Endoscopy > 1999 > 50 > 1 > 7-12
Gastrointestinal Endoscopy > 1999 > 50 > 1 > 23-26
Gastrointestinal Endoscopy > 1999 > 50 > 1 > 63-66
Gastrointestinal Endoscopy > 1999 > 50 > 1 > 47-52