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Copyright ©The Author(s) 2015.
World J Gastroenterol. Jan 14, 2015; 21(2): 423-431
Published online Jan 14, 2015. doi: 10.3748/wjg.v21.i2.423
Figure 1
Figure 1 Levels I and II (A), level II (tumor distal margin above levator ani muscle insertion) (B).