4Jadad AR, Moore RA, Carroll D, et al. Assessing the quality of reports of randomized clinical trials: is blinding necessary [ J ] ?Control Clin Trials, 1996, 17( 1 ) :1-12.
5Vickers A, Goyal N, Harland R, et al. Do certain countries produce only positive results? A systematic review of controlled trials [J]. Control Clin Trials, 1998, 19(2) :159-166.
6Tang JL, Zhan SY, Ernst E. Review of randomised controlled trials of traditional Chinese medicine [ J ]. BMJ, 1999, 319(7203): 160-161.
7Altman DG. Better reporting of randomised controlled trials: the CONSORT statement[J]. BMJ, 1996, 313(7057) :570-571.
8Wilt T, Ishani A, Mac Donald R. Serenoa repens for benign prostatic hyperplasia [ CD ]. Cochrane Database syst Rev, 2002 ( 3 ):CD001423.
9Wilt T, Ishani A, Mac Donald R. Pygeum africanum for benign prostatic hyperplasia. [CD]. Cochrane Database Syst Rev, 2002( 1 ): CD001044.