Retrospective Study
Copyright ©2014 Baishideng Publishing Group Inc.
World J Nephrol. Nov 6, 2014; 3(4): 308-316
Published online Nov 6, 2014. doi: 10.5527/wjn.v3.i4.308
Figure 1
Figure 1 Literature search strategy. Flow chart below shows how the studies were selected for this article.