SMM883323 Supplemetal Material - Supplemental material for The impact of unmeasured within- and between-cluster confounding on the bias of effect estimatorsof a continuous exposure Yun Li Yoonseok Lee Friedrich K Port Bruce M Robinson 10.25384/SAGE.10273379.v1 https://sage.figshare.com/articles/journal_contribution/SMM883323_Supplemetal_Material_-_Supplemental_material_for_The_impact_of_unmeasured_within-_and_between-cluster_confounding_on_the_bias_of_effect_estimatorsof_a_continuous_exposure/10273379 <p>Supplemental material, SMM883323 Supplemetal Material for The impact of unmeasured within- and between-cluster confounding on the bias of effect estimatorsof a continuous exposure by Yun Li, Yoonseok Lee, Friedrich K Port and Bruce M Robinson in Statistical Methods in Medical Research</p> 2019-11-08 13:10:13 Bias formula causal inference instrumental variables linear mixed model observational study unmeasured confounders