TY  - JOUR
A1  - Haviland, A.
A1  - Nagin, D.D.
A1  - Rosenbaum, P.R.
T1  - Combining propensity score matching and group-based trajectory analysis in an observational study
Y1  - 2007
DO  - 10.1037/1082-989X.12.3.247
JF  - Psychological Methods
VL  - 12
IS  - 3

ER  -