Gastroenterology
Barry Marshall
He helped establish the role of Helicobacter pylori.
The problem
A question worth answering.
The cause of many stomach ulcers was misunderstood.
What they did
He helped establish the role of Helicobacter pylori.
What changed
This changed the treatment of many ulcers.
Where you meet their legacy
In the knowledge, systems and people who carry the work forward today.
Evidence and further reading
This story does not assign sole credit for a collective achievement.