@article{Elwert2019, author = "Felix Elwert and Fabian T. Pfeffer", title = "{Supplemental Material, ElwertPfeffer2019_OnlineAppendix - The Future Strikes Back: Using Future Treatments to Detect and Reduce Hidden Bias}", year = "2019", month = "10", url = "https://sage.figshare.com/articles/journal_contribution/Supplemental_Material_ElwertPfeffer2019_OnlineAppendix_-_The_Future_Strikes_Back_Using_Future_Treatments_to_Detect_and_Reduce_Hidden_Bias/9942671", doi = "10.25384/SAGE.9942671.v1" }