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.

youdao

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.

youdao