Original language | English |
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Pages (from-to) | 1074-1082 |
Number of pages | 9 |
Journal | Health Services Research |
Volume | 49 |
Issue number | 3 |
Publication status | Published - 2014 |
Propensity score methods and unobserved covariate imbalance: comments on "squeezing the balloon".
M.S. Ali, R.H.H. Groenwold, O.H. Klungel
Research output: Contribution to journal › Comment/Letter to the editor › Academic › peer-review