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Table 2 Risk of bias of the included studies

From: Efficacy of stem cell therapy for burn wounds: a systematic review and meta-analysis of preclinical studies

Study A B C D E F G H I J Total
Abbas et al. [50] + + + ? + ? + + ? 6
Amini-Nik et al. [17] + + ? ? ? + + ? 4
de Andrade et al. [41] + + ? ? + + + ? 5
Aryan et al. [45] + + ? + ? + + ? 5
Bliley et al. [38] + + ? ? + + + ? 5
Babakhani et al. [42] ? + ? ? ? + + ? 3
Caliari-Oliveira et al. [28] ? + ? ? + + + ? 4
Chang et al. [39] ? + ? ? ? + + ? 3
Feng et al. [37] ? + ? ? ? + + ? 3
Foubert et al. [36] ? + ? ? + + + ? 4
Foubert et al. [52] ? + ? ? + + + ? 4
Franck et al. [16] ? + ? ? ? + + ? 3
Imam et al. [44] ? + ? ? + + + ? 4
Li et al. [29] + + ? ? ? + + ? 4
Liu et al. [47] + + ? + + + + ? 6
Mahmood et al. [46] ? + ? + ? + + ? 4
Xue et al. [43] ? + ? ? ? + + ? 3
Yang et al.—1 [51] ? + + ? + + + ? 5
Yang et al.—2 [40] ? + + + ? + + + ? 6
Zhang et al. [48] + + ? ? ? + + ? 4
Zhou et al.—1 [30] + + ? + + + + ? 6
Zhou et al.—2 [49] ? + ? + ? + + ? 4
  1. Note: Studies fulfilling the criteria of the following: A, sequence generation; B, baseline characteristics; C, allocation concealment; D, random housing; E, blinding of investigators; F, random animals assessment; G, blinding of outcome assessor; H, incomplete outcome data; I, selective outcome reporting; and J, other sources of bias