Systematic Reviews
Copyright ©The Author(s) 2023.
World J Gastroenterol. May 7, 2023; 29(17): 2679-2700
Published online May 7, 2023. doi: 10.3748/wjg.v29.i17.2679
Figure 1
Figure 1 PRISMA flow chart of literature search and selection. RR: Relative risk; OR: Odds ratio; CI: Confidence intervals.