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 4
Figure 4 Puborectalis angle (α angle). IAS: Internal anal sphincter; EAS: External anal sphincter; PR: Puborectalis muscle.