TY  - RPRT
TI  - Technical note: a reference frame designed to use external numeric references during simulation for tumours located in the head.
AU  - C Niël
PY  - 1993
DO  - 10.1259/0007-1285-66-790-927
UR  - https://pubmed.ncbi.nlm.nih.gov/8220978/
ID  - 8220978
ER  -