TY  - GEN
AU  - Young,Jessica G
AU  - Herńan,Miguel A
AU  - Robins,James M
TI  - Identification, estimation and approximation of risk under interventions that depend on the natural value of treatment using observational data
SN  - 2194-9263
PY  - 2014///
PB  - Epidemiologic methods
N1  - Publication Type: Journal Article
UR  - https://doi.org/10.1515/em-2012-0001
ER  -