TY  - RPRT
TI  - Estimation of direct causal effects.
AU  - Maya L Petersen
AU  - Sandra E Sinisi
AU  - Mark J van der Laan
PY  - 2006
DO  - 10.1097/01.ede.0000208475.99429.2d
UR  - https://pubmed.ncbi.nlm.nih.gov/16617276/
ID  - 16617276
ER  -