目的介绍与探讨原发性骶骨肿瘤的临床表现，诊断及外科治疗。
Objective To study the diagnosis and surgical treatment of primary sacrum tumor.
临床表现与肿瘤的部位和大小有关。
The clinic presentations were related to the size and location of tumor.
目的分析心脏瓣膜原发肿瘤病理学特点及其与临床表现的关系。
Objective To study the clinicopathologic features of primary cardiac valve tumors.
目的分析心脏瓣膜原发肿瘤病理学特点及其与临床表现的关系。
Objective To study the clinicopathologic features of primary cardiac valve tumors.
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