[文献资料]主要参考文献

1 ﹒ Sacks HS，Berrier J，Reit man D，et al ． Meta analysiso fr andomizedc ontrolledt rials ． NE ngl J Med1987。4.Moker D，Cook DJ，East wood S，et al ． I mproving theq ualityo fr eport of Meta analysiso fr andomizedc on trolled trials ． the QUOROM statement ． Th ......