TY  - RPRT
TI  - [Intralaboratory quality control over random and systematic errors using the combined Shewart-cusum check card].
AU  - L Lambreva
AU  - S Dobrev
PY  - 1988
UR  - https://pubmed.ncbi.nlm.nih.gov/3213031/
ID  - 3213031
ER  -