TY  - JOUR
TI  - Optimal caliper widths for propensity‐score matching when estimating differences in means and differences in proportions in observational studies
AU  - Peter C. Austin
JO  - Pharmaceutical Statistics
PY  - 2010
VL  - 10
IS  - 2
DO  - 10.1002/pst.433
UR  - https://doi.org/10.1002/pst.433
ER  -