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 Sort search results by Sorted by relevance Sort by date Comparative Effectiveness of Bariatric Surgery and Nonsurgical Therapy in Adults With Metabolic Conditions and a Body Mass Index of 30.0 to 34.9 kg/m² Research Protocol Archive December 14, 2010 Treatment of Osteoarthritis of the Knee: An Update Research Protocol June 16, 2016 Surveillance and Identification of Signals for Updating Systematic Reviews: Implementation and Early Experience Research Report June 7, 2013