Table 3.

The quality of evidence obtained by using a modified CAMARADES (Macleod et al., 2004).

Criteria	References
	(Al-Majed et al., 2006)	(Azzubaidi et al., 2012)	(Hosseinzadeh et al., 2007)	(Hobbenaghi et al., 2014)	(Azizi et al., 2012)	(Ibrahim AbdEl Fattah et al., 2016)	(Balbaa et al., 2016)	(Bargi et al., 2017)	(Ismail et al., 2017)
Publication in a peer-reviewed journal	√	√	√	√	√	√	√	√	√
Number of experiments and control groups report	√	√	√	√	√	√	√	√	√
Housing and Husbandry Conditions	√	√	√	√	√	√	√	√	√
Details of intervention/exposure group procedures	√	√	√	√	√	√	√	√	√
Random allocation to groups
Allocation concealment
Blinded assessment of outcome	√	NA
Biochemical evaluations	√		√				√	√	√
Histological evaluations	√			√		√	√
Statistical analysis	√	√	√	√	√	√	√	√	√
Total	8	5	6	6	5	6	7	6	6

√, the criterion is satisfied; NA, not applicable.