TY  - RPRT
TI  - Radon: is it a problem?
AU  - B L Hart
AU  - F A Mettler
AU  - N H Harley
PY  - 1989
DO  - 10.1148/radiology.172.3.2549562
UR  - https://pubmed.ncbi.nlm.nih.gov/2549562/
ID  - 2549562
ER  -