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Brief Article
©2012 Baishideng Publishing Group Co.
World J Gastroenterol. Apr 14, 2012; 18(14): 1642-1651
Published online Apr 14, 2012. doi: 10.3748/wjg.v18.i14.1642
Figure 1
Figure 1 Flowchart of studies identified for the present review.


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