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Rosenberg, A.; Kurtz, R. C.; Kelsen, D.; Ilson, D.; Gerdes, H. Gastrointestinal Endoscopy (1999)
Markowitz, A.; Kuhn, T. M.; Richter, S.; Zauber, A.; Bloom, G.; Winawer, S. J. Gastroenterology (1999)
Markowitz, A. J.; Winawer, S. J.; Zauber, A.; Gerdes, H.; Kuhn, T. M. Gastroenterology (1999)
Markowitz, A. J. Clinical Chemistry (1999)
Chen, B.; Colleoni, G. W. B.; Gerdes, H.; Zelenetz, A. D.; Ladanyi, M.; Filippa, D. A. Blood (1999)
Winawer, S. J. Bottom Line Health (1999)
Williams & Wilkins (1999)
Winawer, S. J. Gastrointestinal Endoscopy (1999)
Shike, M. The American Journal of Medicine (1999)
Guillem, J. G.; Puig-La Calle, J. Jr; Cellini, C.; Murray, M.; Ng, J.; Fazzari, M.; Paty, P. B.; Quan, S. H. Q.; Wong, W. D.; Cohen, A. M. Lippincott Williams & Wilkins (1999)