TY  - RPRT
TI  - Intracranial endoscopy.
AU  - G Fries
AU  - A Perneczky
PY  - 1999
DO  - 10.1007/978-3-7091-6412-9_2
UR  - https://pubmed.ncbi.nlm.nih.gov/10370716/
ID  - 10370716
ER  -