Study Q1 Q2 Q3 Q4 Q5 Q6 Q7 Q8
ArRejaie et al. [57] + + ? + + - + +
AlQahtani al. [58] + + ? + + - + +
Al-Aali et al. [59] + + ? + + - + +
Alqahtani et al. [60] + ? ? + + - + +
Sinha et al. [61] + ? ? + + - + +
Ali et al. [62] + + ? + + - + ?

N/A = not applicable; "?" = unclear; "+" = yes; "-" = no.