TY  - RPRT
TI  - A simple electron cone interlock system for the clinac-18.
AU  - Y K Chan
AU  - B Walulik
PY  - 1980
DO  - 10.1148/radiology.135.1.7360974
UR  - https://pubmed.ncbi.nlm.nih.gov/7360974/
ID  - 7360974
ER  -