Basic Study
Copyright ©The Author(s) 2017.
World J Gastroenterol. May 28, 2017; 23(20): 3664-3674
Published online May 28, 2017. doi: 10.3748/wjg.v23.i20.3664
Figure 2
Figure 2 Typical blood flow in patients with stage I or II (left) and stage III or IV (right) hemorrhoids.