[医]十二指肠上部;
This paper reports 25 cases of primary malignant tumor of duodenum. One case of tumor was located at the superior part of duodenum, 20 cases at descending part, 2 cases at horizontal part and 2 cases at ascending part.
本文报告原发性十二指肠恶性肿瘤25例,位于球部1例、降部20例、横部和升部各2例;
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