1. Evidence based medicine: what it is and what it isn't;Sackett;BMJ (Clinical research ed),1996
2. Surgeons. AAoO. Preventing venous thromboembolic disease in patients undergoing elective hip and knee arthroplasty. Evidence based guidelines and evidence report. September 24, 2011. http://www.aaos.org/research/guidelines/VTE/VTE_full_guideline.pdf
3. Surgeons AAoO. Management of Hip Fractures in the Elderly - Evidence Based Clinical Practice Guidelines. September 5, 2014; https://www.aaos.org/cc_files/aaosorg/research/guidelines/hipfxguideline.pdf.
4. Operative versus nonoperative care of displaced midshaft clavicular fractures: a meta-analysis of randomized clinical trials;McKee;J Bone Joint Surg Am,2012
5. The answer is 17 years, what is the question: understanding time lags in translational research;Morris;J R Soc Med,2011