Gomes, A. T. B., Coelho, L. K., Secaf, M., Módena, J. L. P., Troncon, L. E. de A. and Oliveira, R. B. de (2002) “Accuracy of the 14C-urea breath test for the diagnosis of Helicobacter pylori”, São Paulo Medical Journal, 120(3), pp. 68–71. Available at: https://periodicosapm.emnuvens.com.br/spmj/article/view/2701 (Accessed: 15 March 2025).