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APA Citation
Liou, J., Lin, J., Chang, C., Chen, M., Cheng, T., Lee, Y., Chen, C., Sheng, W., Wang, H., & Wu, M. (2010). levofloxacin-based and clarithromycin-based triple therapies as first-line and second-line treatments for Helicobacter pylori infection: a randomised comparative trial with crossover design. Gut, 59(5), 572–578. http://access.bl.uk/ark:/81055/vdc_100137793064.0x00004e