Cook P L, May B R
J Laryngol Otol. 1977 Nov;91(11):989-92. doi: 10.1017/s002221510008467x.
A case is presented in which a post-cricoid web was shown arising posteriorly instead of in the almost invariable anterior situation. The patient was not anaemic and some brief comments are made on the inconstant relationship between anaemia and the presence of a web.
本文报道了一例环状软骨后出现蹼状物的病例，该蹼状物并非出现在几乎恒定的前部位置。患者无贫血症状，并对贫血与蹼状物存在之间的不恒定关系进行了简要讨论。
