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Ueshima, E.; Schattner, M.; Mendelsohn, R.; Gerdes, H.; Monette, S.; Takaki, H.; Durack, J. C.; Solomon, S. B.; Srimathveeravalli, G. Gastrointestinal Endoscopy (2018)
Gupta, S.; Provenzale, D.; Regenbogen, S. E.; Hampel, H.; Slavin, T. P. Jr; Hall, M. J.; Llor, X.; Chung, D. C.; Ahnen, D. J.; Bray, T.; more... Journal of the National Comprehensive Cancer Network (2017)
Kurtz, R. C.; Ginsberg, R. J. In DeVita, V. T. Jr; Hellman, S.; Rosenberg, S. A. (Eds.) Cancer: Principles and Practice of Oncology. 6th ed (2001)