TY  - RPRT
TI  - Principal stratification in causal inference.
AU  - Constantine E Frangakis
AU  - Donald B Rubin
PY  - 2002
DO  - 10.1111/j.0006-341x.2002.00021.x
UR  - https://pubmed.ncbi.nlm.nih.gov/11890317/
ID  - 11890317
ER  -