Migliore , Marcello. 2013. “A Dissection of a Manometric Trace of the Upper Esophageal Sphincter and the Crico-Esophageal Coordination”. Annali Italiani Di Chirurgia 84 (2):133-36. https://annaliitalianidichirurgia.it/index.php/aic/article/view/1382.