TY  - RPRT
TI  - Practical gamma camera quality control with a four-point phantom.
AU  - J L Lancaster
AU  - D T Kopp
AU  - J S Lasher
AU  - R Blumhardt
PY  - 1985
UR  - https://pubmed.ncbi.nlm.nih.gov/3973741/
ID  - 3973741
ER  -