Product Search Search Effective Health Care website Submit search Search Tip: Use double quotes around phrases to rank exact matches higher in the result list. 5 results The Empirical Evidence of Bias in Trials Measuring Treatment Differences Research Report September 29, 2014 Registries for Evaluating Patient Outcomes: A User’s Guide: 3rd Edition Research Report April 30, 2014 Identifying and Managing Nonfinancial Conflicts of Interest for Systematic Reviews Research Report May 23, 2013 Registry of Patient Registries (RoPR): Project Overview Research Report May 31, 2012 Defining an Optimal Format for Presenting Research Needs Research Report June 10, 2011