TY  - RPRT
TI  - Quality assurance in screening programmes.
AU  - J A Gray
AU  - J Austoker
PY  - 1998
DO  - 10.1093/oxfordjournals.bmb.a011742
UR  - https://pubmed.ncbi.nlm.nih.gov/10367427/
ID  - 10367427
ER  -