Systematic Reviews
Copyright ©The Author(s) 2015.
World J Gastroenterol. Aug 21, 2015; 21(31): 9420-9429
Published online Aug 21, 2015. doi: 10.3748/wjg.v21.i31.9420
Figure 1
Figure 1 Process of paper selection. Evaluated studies (35); Excluded studies (30); Included studies (5). 1Studies excluded because they did not individuate all the inclusion criteria after collegial evaluation of the full-text manuscript.