Study Year of
publication 		Q1 Q2 Q3 Q4 Q5 Q6 Q7 Q8
Hussain et al. [8] 2023 + - + + - - - +
Hakobayan and Poghosyan [9] 2017 + + + + + - - +
Ramishvili et al. [17] 2023 + + + + + + - +
Hakobyan and Poghosyan [22] 2017 + + + + + + - +
Haskin et al. [26] 2016 + - + + - - - ?
Ghazawi and Beecker [27] 2019 + - + + - - - +
Thekkemuriyi et al. [28] 2014 + + + - + - - ?
Poghosyan and Hakobyan [30] 2022 - - + + + + - +
Sorrentino et al. [31] 2018 + + + + NA NA NA +

? = unclear; + = yes; - = no; NA = not applicable.