目的：探讨胸段食管癌淋巴结转移规律性。
Purpose: To explore the regularity of lymph node metastasis in thoracic esophageal carcinoma.
目的探讨胸段食管癌淋巴结转移的特点及其规律。
Objective To study the pattern and feature of lymph node metastasis in thoracic esophageal carcinoma.
目的通过研究进展期胃近侧癌淋巴结转移情况及相关因素，阐述合理的手术治疗。
Objective to determine the appropriate surgical treatment by studying lymph node metastasis and relative factors in gastric cancer.
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