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Retrospective Cohort Study
©The Author(s) 2017.
World J Gastroenterol. Mar 28, 2017; 23(12): 2194-2200
Published online Mar 28, 2017. doi: 10.3748/wjg.v23.i12.2194
Figure 4
Figure 4 Flow chart of patients in the progressive subgroup. These patients were reviewed twice; the first was based on medical records in 2013 and the second was performed by phone calls as well as based on medical records in 2016.


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