Cricopharyngeal bar: myth and reality.
Ekberg
O
O
Malmö General Hospital, Sweden.
D003679:Deglutition / Q000502:physiology; D004943:Esophagogastric Junction / Q000000981:diagnostic imaging / Q000503:physiopathology*; D004947:Esophagus / Q000502:physiology; D006801:Humans; D009119:Muscle Contraction / Q000502:physiology; D010609:Pharyngeal Muscles / Q000503:physiopathology*; D011859:Radiography