TY  - RPRT
TI  - Calibration for inhaled radioactive material using a point source.
AU  - R B Falk
PY  - 1974
DO  - 10.1097/00004032-197412000-00003
UR  - https://pubmed.ncbi.nlm.nih.gov/4436062/
ID  - 4436062
ER  -