ulcerative colitis
endoscopic retrograde cholangiopancreatography
UPPP
uvulopalatopharyngoplasty
UGI
Helicobacter pylori
EGD
nausea & vomiting
endoscopic ultrasound
IBS
GI
percutaneous endoscopic gastrostomy
gastrointestinal
gastroesophageal reflux disease
N&V
barium enema
fecal occult blood test
PEG
abdominoperineal resection
BE
UC
GERD
APR
upper gastrointestinal
H. pylori
FOBT
EUS
irritable bowel syndrome
esophagogastroduodenoscopy
ERCP
