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Copyright ©The Author(s) 2015.
World J Gastrointest Endosc. Feb 16, 2015; 7(2): 121-127
Published online Feb 16, 2015. doi: 10.4253/wjge.v7.i2.121
Figure 1
Figure 1 Framework for future clinical epidemiological studies. DPC: Diagnosis procedure combination.