共 54 条
[1]
[Anonymous], 2000, COCHRANE DATABASE SY
[2]
[Anonymous], 2002, CALAMUS RENASCENS
[3]
[Anonymous], 1994, BMJ, V308, P81, DOI [10.1136/bmj.308.6921.81, DOI 10.1136/BMJ.308.6921.81]
[8]
Clare L., 2003, COCHRANE DB SYST REV, V4, DOI DOI 10.1002/14651858.CD003260
[10]
Di Bari M, 2001, AM J EPIDEMIOL, V153, P72, DOI 10.1093/aje/153.1.72