This guide is a derivative of the Introduction to Evidence-Based Practice tutorial by Duke University Medical Center Library and the Health Sciences Library at the University of North Carolina at Chapel Hill. It is licensed under a Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International License. 
Evidence-Based Practice requires that clinicians search the literature to find answers to their clinical questions. There are literally millions of published reports, journal articles, correspondence and studies available to clinicians. Choosing the best resource to search is an important decision. Large databases such as PubMed/MEDLINE will give you access to the primary literature. Secondary resources will provide you with an assessment of the original study. Systematic reviews which help summarize the results from a number of studies. These are often called “pre-appraised” or EBP resources.
A search of diabetes and bariatric surgery identified this citation: Mingrone G, Panunzi S, De Gaetano A, et al. Bariatric surgery versus conventional medical therapy for type 2 diabetes. N Engl J Med. 2012;366:1577-85. This trial found that for severely obese patients with type 2 diabetes, bariatric surgery resulted in reduced levels of HbA1c, glucose and BMI than did medical therapy.
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Except where otherwise noted, content in these research guides is licensed under a Creative Commons Attribution 4.0 International License. 