Systematic Reviews
Copyright ©The Author(s) 2022.
World J Gastrointest Surg. Jul 27, 2022; 14(7): 696-705
Published online Jul 27, 2022. doi: 10.4240/wjgs.v14.i7.696
Figure 1
Figure 1  Flow diagram of the study design according to PRISMA 2009.