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APA Citation
Agréus, L., Hellström, P. M., Talley, N. J., Wallner, B., Forsberg, A., Vieth, M., Veits, L., Björkegren, K., Engstrand, L., & Andreasson, A. (n.d.). towards a healthy stomach? Helicobacter pylori prevalence has dramatically decreased over 23 years in adults in a Swedish community. United European Gastroenterology journal, 4(5), 686–696. http://access.bl.uk/ark:/81055/vdc_100124384652.0x00000e