The meta-analysis was performed using PRISMA guidelines. 
PRISMA
The literature review was conducted in December 2020 using PubMed, Science Direct, Cochrane Library, and RevMan V.5.3.



PubMed
The literature review was conducted in December 2020 using PubMed, Science Direct, Cochrane Library, and RevMan V.5.3.



Science Direct
The literature review was conducted in December 2020 using PubMed, Science Direct, Cochrane Library, and RevMan V.5.3.



Cochrane Library
The literature review was conducted in December 2020 using PubMed, Science Direct, Cochrane Library, and RevMan V.5.3.



RevMan V.5.3