1. Gurusamy KS, Yaghoobi M, Davidson BR. Non-invasive diagnostic tests for Helicobacter pylori infection. John Wiley & Sons, Ltd, 2016. https://doi.org/10.1002/14651858.CD012080.pub2
2. Endoscopic diagnostic value and evaluation of gastric Helicobacter pylori infection;Song;J Nor Sichuan Med Coll.,2021
3. Clinical Analysis of 14C-UBT Via Testing Instruments in Helicobacter Pylori Infections;Gu;Clinic Appl Res,2022
4. The sources of radiation;Wang;Chin J Radiol Health,2021
5. ICRP. Individual Monitoring for Internal Exposure of Workers. ICRP Publication 78, 1997.