• cholangiography
  • cholangiopancreatography, endoscopic retrograde
  • cholangiopancreatography, magnetic resonance
  • cholecystography
  • colonography, computed tomographic
  • endoscopy, digestive system
  • cholangiopancreatography, endoscopic retrograde
  • endoscopy, gastrointestinal
  • colonoscopy
  • sigmoidoscopy
  • duodenoscopy
  • gastroscopy
  • proctoscopy
  • esophagoscopy
  • esophageal ph monitoring
  • gastric acidity determination
  • gastrointestinal transit
  • lactose tolerance test
  • liver function tests
  • pancreatic function tests
  • portography
  • sialography