%0 Journal Article
%T The upper esophageal sphincter: anatomy and physiology
%A Ramaswamy, Apoorva T.
%A Martell, Per
%A Azevedo, Renata
%A Belafsky, Peter
%J Annals of Esophagus
%D 2021
%B 2021
%9 
%! The upper esophageal sphincter: anatomy and physiology
%K 
%X 
%U https://aoe.amegroups.org/article/view/6432
%V 5
%P 
%@ 2616-2784