Q. Which of the following statements regarding Peptic ulcers is/are correct?

1. A bacterium, Helicobacter pylori, is responsible for Peptic ulcers.
2. It was studied by Marshall and Warren.

Select the correct answer from the codes given below:
Answer: Both 1 and 2
Notes: Bacterium Helicobacter pylori is established as the main cause of Peptic ulcers. This link was discovered by Australian scientists Robin Warren and Barry Marshall, who demonstrated the presence of this bacterium in the stomachs of ulcer patients and its eradication leading to cure. Both statements are factually correct.