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| 骨外尤文氏瘤的临床特点分析：附２例报告及文献回顾 |
| 李勇，侯翔宇，王维林，赵琦 |
| 中国医科大学附属盛京医院小儿外科，沈阳辽宁110004 |
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| Extraskeletal Ewing's sarcoma: a report of 2 cases |
| LI Yong, HOU Xiang-Yu, WANG Wei-Lin, ZHAO Qi |
| Department of Pediatric Surgery, Shengjing Hospital, China Medical University, Shenyang 110004, China |
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