00391nas a2200133   4500000000100000008004100001100001400042700001400056700001300070700001800083700001500101245012700116022001400243       2020                            d1 aJ. Tazare1 aL. Smeeth1 aS. Evans1 aE. Williamson1 aI. Douglas00aImplementing high-dimensional propensity score principles to improve confounder adjustment in UK electronic health records  a1053-8569