2Turner EH,Matthews AM, Linardatos E, et al. Selective publication of antidepressant trials and its influence on apparent efficacy[ J]. N Engl J Med ,2008,358 ( 3 ) :252-260.
3The WHO: International Clinical Trials Registry Platform (ICTRP). Frequently asked questions. Available from: http ://www. who. int/entity/ictrp/faq/en/index. html.
4The ICMJE. Update on Trials Registration: October 2004. Available from: http://www. icmje. org/icmje - response, pdf.
5Available from : http ://ottawagroup. ohfi. ca/background. html.
6Kdea-Jeric K, Chan AW, Dickersin K, et al. Principles for international registration of protocol information and results from human trials of health related interventions: Ottawa Statement ( part 1 ) [ J ]. BMJ, 2005,330(7497 ) : 956-958.
7The Ottawa Group. The Ottawa Statement, Part Two: Principles of operationalisation for international trial registration (Draft). Available from: http ://ottawagroup. ohri. ca/statement2, html.
10Juni P, Ahman DG, Egger M. Systematic reviews in health care: Assessing the quality of controlled clinical trials [ J ]. BMJ, 2001,323 (7303) :42-46.
10Guyatt G, Haynes B, Jaeschke R, et al. Introduction: the philosophy of evidence-based medicine. In: Users' Guides to the Medical Literature: Essentials of Evidence-Based Clinical Practice. Edited by Guyatt G, Rennie D. Third printing in the United States of America. AMA Press, 515N. State Street, Chicago, IL 60610.