For more than a century, doctors believed they understood the cause of stomach ulcers: stress. But in the 1980s, one Australian doctor dared to challenge that concept, and put he his own stomach on the line to prove it.
For more than a century, doctors believed they understood the cause of stomach ulcers: stress. But in the 1980s, one Australian doctor dared to challenge that concept, and put he his own stomach on the line to prove it.