Valsalva and the upper esophageal sphincter.
Marchese-Ragona
Rosario
R
Restivo
Domenico A
DA
Marioni
Gino
G
Staffieri
Alberto
A
D000715:Anatomy / Q000266:history; D004947:Esophagus / Q000033:anatomy & histology*; D049670:History, 17th Century; D049671:History, 18th Century; D006801:Humans; D007558:Italy