Question

who found out the actual cause of peptic ulser and how ?​

Answer 1

Answer:

Robin Warren, 68, for their discovery of the Helicobacter pylori (H. pylori) bacterium and its role in gastritis and peptic ulcer disease. Up until their breakthrough in 1982, the long-held view was that spicy foods or stress caused ulcer disease.

Explanation:

give me brainlist