title: Studies on endoneoplastic transformation of glial tumors in vitro in long-term tissue cultures and subcultures.
mesh_terms: D001254:Astrocytoma / Q000473:pathology*; D002452:Cell Count; D002471:Cell Transformation, Neoplastic; D046508:Culture Techniques; D005909:Glioblastoma / Q000473:pathology*; D005910:Glioma / Q000473:pathology*; D006801:Humans; D008858:Microscopy, Phase-Contrast; D009040:Motion Pictures; D013997:Time Factors