<prompt> Which of the following test is not a test for helicobacter pylori infection?Fecal antigen testBarium swallowMicrobiological cultureRapid rease test  <response>: 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. 