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http://www.researchgate.net/profile/Timothy_Rainer/publication/12245872_Cost_effectiveness_analysis_of_intravenous_ketorolac_and_morphine_for_treating_pain_after_limb_injury_Double_blind_randomised_controlled_trial/links/0deec523216e871fe6000000.pdf
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http://static.beta.bmj.com/content/321/7271/1247.full.pdf
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http://211.103.242.133:8080/ziyuan/CDDPdf/evd/base/British%20Medical%20Journal/随机对照实验/bmj2000321111247.pdf
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http://www.onacademic.com/detail/journal_1000040058644610_c32d.html
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http://www.bmj.com/cgi/reprint/321/7271/1247.pdf
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