Retrospective Study
Copyright ©The Author(s) 2017.
World J Gastroenterol. May 14, 2017; 23(18): 3309-3314
Published online May 14, 2017. doi: 10.3748/wjg.v23.i18.3309
Figure 1
Figure 1 Typical pictures of Ling classification. A: Ling I; B: Ling IIa; C: Ling IIb; D: Ling IIc; E: Ling III.