He endured skepticism but won a Nobel Prize for his work upending the conventional wisdom that stress, diet or alcohol caused the painful condition. He endured skepticism but won a Nobel Prize for his work upending the conventional wisdom that stress, diet or alcohol caused the painful condition. Warren, J Robin (1937-2024), Deaths (Obituaries), Nobel Prizes, Marshall, Barry, Ulcers, Bacteria, Digestive Tract, Helicobacter Pylori (Bacterium), Antibiotics, Research, Australia NYT > Science