Pylorus identification.
D004386:Duodenum / Q000502:physiology; D005753:Gastric Mucosa / Q000502:physiology*; D005769:Gastrointestinal Motility; D005773:Gastroscopy; D007413:Intestinal Mucosa / Q000502:physiology; D008722:Methods; D011199:Potentiometry; D011708:Pylorus / Q000502:physiology*