[The ultrastructure of human osteosarcoma].
D000293:Adolescent; D000328:Adult; D001859:Bone Neoplasms / Q000648:ultrastructure*; D005260:Female; D005266:Femoral Neoplasms / Q000648:ultrastructure; D006801:Humans; D008297:Male; D012516:Osteosarcoma / Q000648:ultrastructure*; D013977:Tibia / Q000648:ultrastructure