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 Development of Statistical Estimators to Address Questions of Comparative Effectiveness in Elderly Heart Failure Patients Research Report December 2, 2009 Assessing the Validity of Administrative Data Using Clinical Medical Records Research Report December 2, 2009 Adaptation of Data Mining Algorithms Assessing the Comparative Effectiveness and Safety of NSAIDs Research Report December 2, 2009