Tatsuki Oyaizu

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Female 6-week-old shrews were given a solution ofN-methyl-N′-nitroN-nitrosoguanidine (MNNG) at a concentration of 50 μg/ml or 100 μg/ml in the drinking water. All 11 shrews receiving 100 μg/ml MNNG died 8–13 days after the beginning of carcinogen administration and 6 of the 20 shrews receiving 50 μg/ml MNNG died after 10–54 days. When animals were between(More)
A gastric tumor was pointed out in 43-year-old woman as a result of a medical check-up. We performed partial gastrectomy based on a preoperative diagnosis of a gastrointestinal stromal tumor (GIST). However, as intraoperative frozen section histological examination showed lymph node metastasis, we performed a total gastrectomy simlilar to cases of gastric(More)
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