Included studies | Publishing time | Document type | Evidence lifting factor | Grade |
Hong Zhang [11] | 2009 | CR | Zhongjing prescription (+1) single intervention of Zhongjing prescription (+1) | High |
Hong Zhang [12] | 2009 | RCT | Low accuracy (−1) dose-response relationship (+1) Zhongjing prescription (+1) single intervention of Zhongjing prescription (+1) | High |
Chunxian Zhang [13] | 2006 | CR | Zhongjing prescription (+1) | Medium |
Yunzhong Lin [14] | 2006 | CR | Zhongjing prescription (+1) | Medium |
Xiaomei Ma [15] | 2008 | CR | Zhongjing prescription (+1) | Medium |