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APA Citation
Chung, K. H., Lee, S. H., Choi, J. H., Kang, J., Paik, W. H., Ahn, D., Ryu, J. K., & Kim, Y. (2018). effect of submucosal injection in endoscopic papillectomy of ampullary tumor: Propensity‐score matching analysis. United European Gastroenterology journal, 6(4), 576–585. http://access.bl.uk/ark:/81055/vdc_100124784371.0x000016