TY  - RPRT
TI  - Variance in parametric images: direct estimation from parametric projections.
AU  - R P Maguire
AU  - N M Spyrou
AU  - K L Leenders
PY  - 2000
DO  - 10.1088/0031-9155/45/1/307
UR  - https://pubmed.ncbi.nlm.nih.gov/10661585/
ID  - 10661585
ER  -