Dar, Z.S. et al. 2021. DIAGNOSTIC ACCURACY OF C-14 UREA BREATH TEST FOR DETECTION OF HELICOBACTER PYLORI IN PATIENTS WITH GASTRITIS. Pakistan Armed Forces Medical Journal. 71, 4 (Aug. 2021), 1231–34. DOI:https://doi.org/10.51253/pafmj.v71i4.4305.