THE POST-CRICOID IMPRESSION ON THE OESOPHAGUS.
D003679:Deglutition; D004947:Esophagus; D006801:Humans; D007817:Laryngeal Cartilages; D010827:Physiology; D011859:Radiography
DEGLUTITION; ESOPHAGUS; LARYNGEAL CARTILAGES; PHYSIOLOGY; RADIOGRAPHY