Cho YS, Chae HS, Jang SN, Kim JS, Son HS, Kim HK, Kim BW, Han SW, Choi KY, Lee HK, Chang ED
BACKGROUND/AIMS: The 13C-urea breath test (UBT) is a semiquantitative test for measuring Helicobacter pylori infection loading. H. pylori produces ammonia, which elevates the pH of the gastric mucosa and...