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  1. Peptic ulcer - Symptoms and causes - Mayo Clinic

  2. Peptic ulcer - Diagnosis and treatment - Mayo Clinic

  3. Helicobacter pylori (H. pylori) infection - Symptoms & causes

  4. Ulcerative colitis - Symptoms and causes - Mayo Clinic

  5. Heartburn or heart attack: When to worry - Mayo Clinic

  6. Mayo Clinic Q and A: How is a peptic ulcer treated?

  7. Gastrointestinal bleeding - Symptoms and causes - Mayo Clinic

  8. Gastritis - Diagnosis and treatment - Mayo Clinic

  9. Bedsores (pressure ulcers) - Symptoms and causes - Mayo Clinic

  10. Ulcerative colitis - Diagnosis and treatment - Mayo Clinic