Study Adequate sequence generation? Allocation concealment? Blinding of
outcome assessment? 		Incomplete outcome data addressed? Free of selective reporting? Free of other bias?
Jimbo et al. [18] Unclear NA NA Unclear No Yes
Aguirrebeitia et al. [19] Unclear NA NA Unclear Yes Yes
Bouazza-Juanes et al. [20] Unclear NA NA Unclear Yes Yes
Sahabi et al. [21] Unclear NA NA Unclear Yes Yes
Paul et al. [22] Unclear NA NA Unclear Unclear Yes
Martini et al. [23] Unclear NA NA Unclear Yes Yes
Vidya et al. [24] Unclear NA NA Unclear Yes Unclear
I-Chiang et al. [25] Unclear NA NA Unclear Yes Yes
Santiago Junior et al. [26] Unclear NA NA Unclear Unclear Unclear
Savadi et al. [27] Unclear NA NA No Unclear Yes
Chou I-C et al. [28] Unclear NA NA Unclear Unclear Yes
Demenko et al. [29] Unclear NA NA Unclear Yes Yes
Bölükbaşı et al. [30] Unclear NA NA Unclear Yes Yes
Ormianer et al. [31] Unclear NA NA No Unclear Unclear
Xia et al. [33] Unclear NA NA Unclear Yes Yes
Sotto-Maior et al. [34] Unclear NA NA Unclear Yes Yes
Romeed et al. [36] Unclear NA NA No Unclear Yes
Arun Kumar et al. [38] Unclear NA NA Unclear Yes Yes
Alvarez-Arenal et al. [63] Unclear NA NA Unclear Unclear Unclear
Kurniawan et al. [64] Unclear NA NA Unclear Yes Yes

NA = not appropriate.