the large intestine begins at ileocecal valve, ends at anus
【预订】the ileoanal pouch 9783319943848
symptomayic -2% symptomayic -2 feet (61 cm) from the ileocecal
回盲瓣ileocecal valve 18.回肠ileum 19.
pyloric passage, 2 hour after pyloric passage, and ileocecal