TY  - RPRT
TI  - Penumbra effect in therapy cones.
AU  - A RAVENTOS
AU  - G S SCHWARTZ
PY  - 1951
DO  - 10.1148/56.1.84
UR  - https://pubmed.ncbi.nlm.nih.gov/14808584/
ID  - 14808584
ER  -