[Pathology of the hiatal esophagus. II. Problem of the distal esophageal sphincter].
D004947:Esophagus / Q000033:anatomy & histology*; D006652:Histological Techniques; D006801:Humans
ESOPHAGUS/anatomy and histology
Patología del esófago hiatal. II. El problema del esfínter esofágico distal.