软组织外周性原始神经外胚层瘤、骨外尤文氏肉瘤和胸肺区小细胞恶性肿瘤的临床病理研究

• A Study of Peripheral Primitive Neuroectodermal Tumor, Extraosseous Ewing's Sarcoma and Askin Tumor of Soft Tissue Clinically and Pathologically