![Barry Marshall | World Laureates Forum Official Site - Science and Technology for the Common Destiny of Mankind Barry Marshall | World Laureates Forum Official Site - Science and Technology for the Common Destiny of Mankind](https://en.wlaforum.com/res/scientist/%E5%BE%AE%E4%BF%A1%E6%88%AA%E5%9B%BE_20201025173739.png)
Barry Marshall | World Laureates Forum Official Site - Science and Technology for the Common Destiny of Mankind
![Nobel Laureate Barry J. Marshall, MBBS, To Present the Inaugural 'David A. Peura, MD Endowed Lecture' - Research - Medicine in Motion News Nobel Laureate Barry J. Marshall, MBBS, To Present the Inaugural 'David A. Peura, MD Endowed Lecture' - Research - Medicine in Motion News](https://news.med.virginia.edu/files/2023/05/marshall-award-nobel-prize-1x1-1-300x300.jpg)
Nobel Laureate Barry J. Marshall, MBBS, To Present the Inaugural 'David A. Peura, MD Endowed Lecture' - Research - Medicine in Motion News
![Dr. Barry J. Marshall was convinced that H. pylori bacteria causes stomach ulcers, but no one believed him. Since it was illegal to test his theory on humans, he drank the bacteria Dr. Barry J. Marshall was convinced that H. pylori bacteria causes stomach ulcers, but no one believed him. Since it was illegal to test his theory on humans, he drank the bacteria](https://preview.redd.it/dr-barry-j-marshall-was-convinced-that-h-pylori-bacteria-v0-27e1y1ju1nt81.jpg?width=640&crop=smart&auto=webp&s=decd4423a298feac930b68283935d58cd13d3940)