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Yukawa, E., Hayashi, M., Fukuda, M. et al. Diagnosis of carcinomas of the rectum and lower sigmoid (Especially, consideration upon early detection). Gastroenterol Jpn 4, 33 (1969). https://doi.org/10.1007/BF02777265
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DOI: https://doi.org/10.1007/BF02777265