TY  - RPRT
TI  - [Cranial and cervical chordomas. A differential diagnostic problem].
AU  - G Seifert
AU  - K Donath
PY  - 1998
DO  - 10.1007/s100060050051
UR  - https://pubmed.ncbi.nlm.nih.gov/9658806/
ID  - 9658806
ER  -