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 Sort search results by Sorted by relevance Sort by date The Effectiveness and Risks of Long-term Opioid Treatment of Chronic Pain Research Protocol Archive December 19, 2013 Treating and Preventing C. difficile Infections Consumer Summary Archive May 30, 2017 Home-Based Primary Care Interventions Systematic Review Research Protocol Archive November 19, 2014 Pressure Ulcer Risk Assessment and Prevention: A Comparative Effectiveness Review Research Protocol Archive January 10, 2012