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前情提要
采用PubMed和CINAHL（護(hù)理與輔助醫(yī)療文獻(xiàn)累積索引）數(shù)據(jù)庫(kù)進(jìn)行全面文獻(xiàn)檢索，檢索納入日期范圍為1993年至2011年。最后關(guān)于魚油的問題，檢索納入日期范圍為1990年至2013年，以充分評(píng)估關(guān)于該主題的主要文獻(xiàn)。通過(guò)手工檢索參考文獻(xiàn)列表，從相關(guān)綜述獲得補(bǔ)充文獻(xiàn)。圖1列出用于納入和排除各個(gè)問題相關(guān)研究的標(biāo)準(zhǔn)。圖2闡述檢索策略和研究選擇流程【14】。最終分析納入102篇原始研究。 
圖1 2013年腫瘤指南文獻(xiàn)檢索策略、收錄與排除標(biāo)準(zhǔn)
圖2 2013年腫瘤指南證據(jù)分析庫(kù)（EAL）系統(tǒng)回顧檢索策略和選擇過(guò)程流程圖。流程圖模板改編自Moher等【14】。 參考文獻(xiàn) National Cancer Institute. What is cancer? http://www./cancertopics/cancerlibrary/what-is-cancer. Updated February 9, 2015. Accessed February 15, 2016. National Cancer Institute. Cancer statistics. http://www./about-cancer/what-is-cancer/statistics. Updated March 14, 2016. Accessed June 13, 2016. American Cancer Society. Genes in cancer. http://www./cancer/cancercauses/geneticsandcancer/genesandcancer/genes-and-cancer-gene-changes. Reviewed June 25, 2014. Accessed February 15, 2016. National Cancer Institute. Nutrition in cancer care-health professional version (PDQ): Overview. http://www./cancertopics/pdq/supportivecare/nutrition/HealthProfessional. Updated January 8, 2016. Accessed February 15, 2016. Reeves, GK, Pirie, K, Beral, V, Green, J, Spencer, E, Bull, D. Cancer incidence and mortality in relation to body mass index in the Million Women Study: Cohort study. BMJ. 2007;335:1134. Lelièvre, SA, Weaver, CM. Global nutrition research: Nutrition and breast cancer prevention as a model. Nutr Rev. 2013;71:742-752. Key, TJ, Allen, NE, Spencer, EA, Travis, RC. The effect of diet on risk of cancer. Lancet. 2002;360:861-868. Key, T. Cancer prevention and treatment. World Rev Nutr Diet. 2014;111:123-129. American Society of Parenteral and Enteral Nutrition. Clinical guidelines. http://www./Guidelines_and_Clinical_Resources/Clinical_Guidelines/. Accessed February 15, 2016. Clinical Oncological Society of Australia, Cancer Council Australia. Evidence-based practice guidelines for the nutritional management of adult patients with head and neck cancer. http://wiki..au/australia/COSA:Head_and_neck_cancer_nutrition_guidelines/Introduction. Accessed February 15, 2016. Oncology Nursing Society. PEP rating system overview. https://www./practice-resources/pep. Accessed February 15, 2016. Handu, D, Moloney, L, Wolfram, T, Ziegler, P, Acosta, A, Steiber, A. Academy of Nutrition and Dietetics methodology for conducting systematic reviews for the Evidence Analysis Library. J Acad Nutr Diet. 2016;116:311-318. Definition of terms list. Academy of Nutrition and Dietetics. Definition and Terms Workgroup and the Quality Management Committee. January 2016. http://www./~/media/eatrightpro%20files/practice/patient%20care/scope%20of%20practice/definition_of_terms_policy.ashx Accessed May 9, 2016. Moher D, Liberati A, Tetzlaff J, Altman DG; The PRISMA Group. Preferred Reporting Items for Systematic Reviews and Meta-Analyses: The PRISMA statement. PLoS Med. 2009;6(6):e1000097.
翻譯：肖慧娟（天津市第三中心醫(yī)院）
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