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. 4 results Supplemental Project To Assess the Transparency of Reporting Requirements: Omega-3 Fatty Acids and Cardiovascular Disease Research Report June 1, 2017 Change Score or Followup Score? An Empirical Evaluation of the Impact of Choice of Mean Difference Estimates White Paper April 20, 2015 Identifying Signals for Updating Systematic Reviews: A Comparison of Two Methods Research Report June 15, 2011 Assessing the Impact of AHRQ Evidence-based Practice Center (EPC) Reports on Future Research Research Report June 10, 2011