Is there an accessory sphincter of the cervical oesophagus?
Ekberg
O
O
Department of Diagnostic Radiology, Malmö General Hospital, Sweden.
Borgström
P
P
Lindgren
S
S
D000368:Aged; D003680:Deglutition Disorders / Q000000981:diagnostic imaging* / Q000503:physiopathology; D004943:Esophagogastric Junction / Q000503:physiopathology; D004947:Esophagus / Q000000981:diagnostic imaging* / Q000503:physiopathology; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D011859:Radiography