Shirin, H, Kenet G, Shevah O, Wardi Y, Birkenfeld S, Shahmurov M, Bruck R, Niv Y, et al. (2001). "Evaluation of a novel continuous real time 13C urea breath analyzer for Helicobacter pylori". Aliment. Pharmacol. Ther. 15 (3): 389–394. doi:10.1046/j.1365-2036.2001.00926.x. PMID11207514. S2CID25680497.
Israeli, E, Ilan Y, Meir SB, Buenavida C, Goldin E (2003). "A novel 13C-urea breath test device for the diagnosis of Helicobacter pylori infection: continuous online measurements allow for faster test results with high accuracy". J Clin Gastroenterol. 37 (2): 139–41. doi:10.1097/00004836-200308000-00009. PMID12869884. S2CID13527961.
Peng NJ, Lai KH, Liu RS, Lee SC, Tsay DG, Lo CC, Tseng HH, Huang WK, Lo GH, Hsu PI (2001). "Clinical significance of oral urease in diagnosis of Helicobacter pylori infection by [13C]urea breath test". Dig Dis Sci. 46 (8): 1772–8. doi:10.1023/A:1010626225949. PMID11508681. S2CID225771.
Shirin, H, Kenet G, Shevah O, Wardi Y, Birkenfeld S, Shahmurov M, Bruck R, Niv Y, et al. (2001). "Evaluation of a novel continuous real time 13C urea breath analyzer for Helicobacter pylori". Aliment. Pharmacol. Ther. 15 (3): 389–394. doi:10.1046/j.1365-2036.2001.00926.x. PMID11207514. S2CID25680497.
Israeli, E, Ilan Y, Meir SB, Buenavida C, Goldin E (2003). "A novel 13C-urea breath test device for the diagnosis of Helicobacter pylori infection: continuous online measurements allow for faster test results with high accuracy". J Clin Gastroenterol. 37 (2): 139–41. doi:10.1097/00004836-200308000-00009. PMID12869884. S2CID13527961.
Peng NJ, Lai KH, Liu RS, Lee SC, Tsay DG, Lo CC, Tseng HH, Huang WK, Lo GH, Hsu PI (2001). "Clinical significance of oral urease in diagnosis of Helicobacter pylori infection by [13C]urea breath test". Dig Dis Sci. 46 (8): 1772–8. doi:10.1023/A:1010626225949. PMID11508681. S2CID225771.
Shirin, H, Kenet G, Shevah O, Wardi Y, Birkenfeld S, Shahmurov M, Bruck R, Niv Y, et al. (2001). "Evaluation of a novel continuous real time 13C urea breath analyzer for Helicobacter pylori". Aliment. Pharmacol. Ther. 15 (3): 389–394. doi:10.1046/j.1365-2036.2001.00926.x. PMID11207514. S2CID25680497.
Israeli, E, Ilan Y, Meir SB, Buenavida C, Goldin E (2003). "A novel 13C-urea breath test device for the diagnosis of Helicobacter pylori infection: continuous online measurements allow for faster test results with high accuracy". J Clin Gastroenterol. 37 (2): 139–41. doi:10.1097/00004836-200308000-00009. PMID12869884. S2CID13527961.
Peng NJ, Lai KH, Liu RS, Lee SC, Tsay DG, Lo CC, Tseng HH, Huang WK, Lo GH, Hsu PI (2001). "Clinical significance of oral urease in diagnosis of Helicobacter pylori infection by [13C]urea breath test". Dig Dis Sci. 46 (8): 1772–8. doi:10.1023/A:1010626225949. PMID11508681. S2CID225771.