TY  - RPRT
TI  - Letter: Dose error due to a mercury shutter.
AU  - P Goulet
AU  - R O Kornelsen
PY  - 1975
DO  - 10.1259/0007-1285-48-570-501
UR  - https://pubmed.ncbi.nlm.nih.gov/1227708/
ID  - 1227708
ER  -