TY  - RPRT
TI  - Proficiency testing in cytology--does it have any value?
AU  - G K Nagy
AU  - D N Collins
AU  - L E Newton
PY  - 1995
DO  - 10.1002/dc.2840120424
UR  - https://pubmed.ncbi.nlm.nih.gov/7656763/
ID  - 7656763
ER  -