Videos of Dr John Martin


Why is detecting colon cancer early important? See more


What early signs of colon cancer should people be aware of? See more


How is colon cancer diagnosed? See more


What is the procedure for a colonoscopy? See more


Expert insight: Diagnosing Crohn's disease - Online interview See more


Ulcerative colitis: an expert on the causes, management and treatment. - Online interview See more


An introduction to Dr John Martin See more


Colon cancer: what to watch out for and what can be done See more

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