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. 3 results Change Score or Followup Score? An Empirical Evaluation of the Impact of Choice of Mean Difference Estimates White Paper April 20, 2015 Closing the Quality Gap Series: Comparative Effectiveness of Medication Adherence Interventions Research Protocol Archived August 18, 2011 Acute Migraine Treatment in Emergency Settings Research Protocol Archived July 18, 2011