title: [Malignant fibrous histiocytoma: an ultrastructural study of 12 cases].
mesh_terms: D001859:Bone Neoplasms / Q000648:ultrastructure; D018219:Histiocytoma, Benign Fibrous / Q000648:ultrastructure*; D006801:Humans; D012983:Soft Tissue Neoplasms / Q000648:ultrastructure*