Perri, F., Clemente, R., Bisceglia, M., Quitadamo, M., Festa, V., Niro, G., Rutgeerts, P., & Andriulli, A. (1997). The C-13-urea breath test (UBT) correlates with the bacterial load ansi the severity of inflammation in H-pylori (HP) gastritis. Gut (English Edition) : an international journal of gastroenterology & hepatology, 41, A80-A81. (Original work published 1997)