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 Effectiveness of Early Diagnosis, Prevention, and Treatment of Clostridium difficile Infection Systematic Review Archive December 19, 2011 Preventive Pharmacological Treatments for Migraine in Adults: Future Research Needs Systematic Review Archive April 18, 2013 Early Diagnosis, Prevention, and Treatment of Clostridium difficile: Update Systematic Review Archive March 29, 2016