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Table 2 Quality assessment of RCTs by Cochrane manual scoring standard

From: Efficacy and safety of target combined chemotherapy in advanced gastric cancer: a meta-analysis and system review

Studies Design RM Blinding Follow-up DT Quality
Bang Y. J 2010 [7] RCT IVR Single Yes Yes A
Wilke H 2014 [8] RCT IVR Double Yes Yes A
Shen L 2015 [9] RCT IVR Double Yes Yes A
Lordick F 2013 [10] RCT IVR Single Yes Yes A
Waddell T 2013 [12] RCT IVR Single Yes Yes A
Rao S 2010 [13] RCT IVR Single Yes Yes A
NCT01246960 [15] RCT N Double Yes Yes B
Ohtsu A 2011 [16] RCT IVR Double Yes Yes A
Du F 2015 [17] RCT IVR Single Yes Yes A
Koizumi W 2013 [18] RCT IVR Single Yes Yes A
Satoh T 2015 [19] RCT RPD Single Yes Yes A
Satoh T 2014 [20] RCT IVR Single Yes Yes A
Yi J. H 2012 [21] RCT IVR Single Yes Yes A
Hecht J. R 2016 [22] RCT IVR Double Yes Yes A
  1. IVR interactive voice recognition system, RPD random permuted blocks, RM randomization method, DST description of test methods