TY  - RPRT
TI  - Subgroup variation in diagnostic test evaluation.
AU  - Arthur T Evans
PY  - 2003
DO  - 10.7326/0003-4819-138-8-200304150-00023
UR  - https://pubmed.ncbi.nlm.nih.gov/12693900/
ID  - 12693900
ER  -