Systematic Reviews
Copyright ©The Author(s) 2020.
World J Stem Cells. Aug 26, 2020; 12(8): 879-896
Published online Aug 26, 2020. doi: 10.4252/wjsc.v12.i8.879
Figure 2
Figure 2 Flowchart for literature retrieval and screening. Flowchart shows that the repeated siftings have brought 198 search records to the 96 articles for final reference lists.