title: [Ultrastructure of giant cell tumor of bone. II. Preliminary report on subtypes and study on the origin of multinuclear giant cells].
mesh_terms: D001859:Bone Neoplasms / Q000648:ultrastructure*; D005870:Giant Cell Tumors / Q000209:etiology / Q000648:ultrastructure*; D006801:Humans; D008854:Microscopy, Electron