TY  - JOUR
A1  - Foster, E.M.
T1  - Propensity score matching. An illustrative analysis of dose response
Y1  - 2003
DO  - 10.1097/01.MLR.0000089629.62884.22
JF  - Medical Care
VL  - 41
IS  - 10
SP  - 1183
EP  - -1192

ER  -