Minireviews
Copyright ©The Author(s) 2015.
World J Gastrointest Endosc. Jan 16, 2015; 7(1): 45-52
Published online Jan 16, 2015. doi: 10.4253/wjge.v7.i1.45
Figure 1
Figure 1 Flow diagram of the literature search strategy and valuation of studies identified for review.