Gastrointestinal Endoscopy
Gastrointestinal Endoscopy > 2000 > 52 > 4 > 506-510
Gastrointestinal Endoscopy > 2000 > 52 > 4 > 500-505
Gastrointestinal Endoscopy > 2000 > 52 > 4 > 469-477
Gastrointestinal Endoscopy > 2000 > 52 > 4 > 534-540
Gastrointestinal Endoscopy > 2000 > 52 > 4 > 455-462