21.   No one oncogene or tumour supporessor gene has yet been implicated in all large bowel cancers.

22.   The loose stools are invariably considered to be osmotic in type, due to the passage of unabsorbed solute delivered to the large bowel.

23.   Effect of dietary calcium on normal small and large bowel mucosa proliferation Forty animals were randomly divided into two equal groups of which one group received calcium supplementation.

24.   Eighteen had adenocarcinoma of the large bowel, anywhere from the caecum to the rectum.

25.   People who harbour sulphate reducing bacteria in their large bowel have higher levels of sulphide in their faeces than methanogenic subjects.

26.   An autopsy showed Valentine had an obstruction of the large bowel with an infarction, a dead bowel segment caused by lack of blood flow.

27.   She had had a series of operations, including total removal of her large bowel, small bowel and rectum.