TY  - RPRT
TI  - 1990 Medicare/CLIA final rules for proficiency testing: minimum intralaboratory performance characteristics (CV and bias) needed to pass.
AU  - S S Ehrmeyer
AU  - R H Laessig
AU  - J E Leinweber
AU  - J J Oryall
PY  - 1990
UR  - https://pubmed.ncbi.nlm.nih.gov/2170059/
ID  - 2170059
ER  -