Editorial
                    
                        
                                World J Gastroenterol
                                17(22):2683-2690.
                                Published online Jun 14, 2011.
                                doi: 10.3748/wjg.v17.i22.2683
                            
                            
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                        Topic Highlight
                    
                        
                                World J Gastroenterol
                                17(22):2691-2695.
                                Published online Jun 14, 2011.
                                doi: 10.3748/wjg.v17.i22.2691
                            
                            
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                                World J Gastroenterol
                                17(22):2696-2701.
                                Published online Jun 14, 2011.
                                doi: 10.3748/wjg.v17.i22.2696
                            
                            
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                                World J Gastroenterol
                                17(22):2702-2707.
                                Published online Jun 14, 2011.
                                doi: 10.3748/wjg.v17.i22.2702
                            
                            
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                                World J Gastroenterol
                                17(22):2708-2714.
                                Published online Jun 14, 2011.
                                doi: 10.3748/wjg.v17.i22.2708
                            
                            
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                                World J Gastroenterol
                                17(22):2715-2722.
                                Published online Jun 14, 2011.
                                doi: 10.3748/wjg.v17.i22.2715
                            
                            
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                                World J Gastroenterol
                                17(22):2723-2733.
                                Published online Jun 14, 2011.
                                doi: 10.3748/wjg.v17.i22.2723
                            
                            
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                                World J Gastroenterol
                                17(22):2734-2739.
                                Published online Jun 14, 2011.
                                doi: 10.3748/wjg.v17.i22.2734
                            
                            
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                                World J Gastroenterol
                                17(22):2740-2747.
                                Published online Jun 14, 2011.
                                doi: 10.3748/wjg.v17.i22.2740
                            
                            
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                        Original Article
                    
                        
                                World J Gastroenterol
                                17(22):2748-2773.
                                Published online Jun 14, 2011.
                                doi: 10.3748/wjg.v17.i22.2748
                            
                            
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                                World J Gastroenterol
                                17(22):2774-2780.
                                Published online Jun 14, 2011.
                                doi: 10.3748/wjg.v17.i22.2774
                            
                            
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