TY  - RPRT
TI  - Estimation of shielding factors for linear accelerators.
AU  - James Mechalakos
AU  - Jean St Germain
PY  - 2002
DO  - 10.1097/00004032-200211005-00006
UR  - https://pubmed.ncbi.nlm.nih.gov/12458922/
ID  - 12458922
ER  -