'How I cured stomach ulcers' - Barry Marshall
Barry Marshall changed the face of medical science when he swallowed a petri-dish of dangerous bacteria to prove it caused stomach ulcers.
His theory meant that they could be treated with a simple anti-biotic rather than expensive surgery.
Dr Marshall also claimed that his research continues to save up to 500,000 lives per year.
He gave a frank and colourful account of the day he swallowed a petri-dish to Owen Bennett Jones on The Interview.