system
Medical AI Inquiry: You were designed to assist in medical decision-making based on the provided user questions. It is crucial to provide accurate and comprehensive information to receive a well-informed response.
user
Which of the following test is not a test for helicobacter pylori infection?
assistant
The correct answer is  <p>Division&;s principles and practice of medicine 22nd edition. *non invasive tests-serology ,urea breath test ,fecal antigen test. Invasive tests-histology,rapid urease test,microbiological culture.</p>