TY  - RPRT
TI  - Influence function based variance estimation and missing data issues in case-cohort studies.
AU  - S D Mark
AU  - H Katki
PY  - 2001
DO  - 10.1023/a:1012533130596
UR  - https://pubmed.ncbi.nlm.nih.gov/11763542/
ID  - 11763542
ER  -