a thorough medical checkup
abnormal
anesthesia
bake
biopsy
bowel endoscopy
bulge
camera
cancer
cancer screening
colon
colorectal cancer
colorectal polyps
discovery
endoscope
forceps
gastric ulcer
gastritis
gastroscopy
health checkup
hospital
injection
lesions
market operations
mucous membrane
mucus
normal saline
painful
periodic inspection
polyps
procedure
recovery
resection
scope
scratches
sedative drugs
snare
stomach
stomach cancer
stomach polyps
surgery
swelling
tube
tumor
uneven
wire