Included studies

Publishing

time

Document

type

Evidence lifting factor

Grade

Yanxia Liu [3]

2006

CR

Dose-response relationship (+1) Zhongjing prescription (+1) single intervention of Zhongjing prescription (+1)

High

Jianxin Zhao [4]

2006

'RCT

Limitations of the study (−2) dose-response relationship (+1) Zhongjing prescription (+1)

High

Huiying Yang [5]

2007

CR

Zhongjing prescription (+1) single intervention of Zhongjing prescription (+1)

High

Xiufen Li [6]

2008

'RCT

Limitations of the study (−2) Zhongjing prescription (+1) single intervention of Zhongjing prescription (+1)

High

Yingjie Li [7]

2009

CR

Zhongjing prescription (+1) single intervention of Zhongjing prescription (+1)

High

Xinling Wang [8]

2000

CR

Zhongjing prescription (+1)

Medium

Qiao Lu [9]

2004

CR

Zhongjing prescription (+1)

Medium

Guozhen Chen [10]

2005

CR

Zhongjing prescription (+1)

Medium