Prospective Study
Copyright ©The Author(s) 2017.
World J Gastroenterol. Jun 7, 2017; 23(21): 3900-3906
Published online Jun 7, 2017. doi: 10.3748/wjg.v23.i21.3900
Figure 2
Figure 2 The Internal anal sphincter length (solid line) and the length of external anal sphincter plus puborectalis muscle (dotted line) were measured in the mid-sagittal plane. IAS: Internal anal sphincter; EAS: External anal sphincter; PR: Puborectalis muscle.