The view box.
D003680:Deglutition Disorders / Q000000981:diagnostic imaging* / Q000209:etiology; D003937:Diagnosis, Differential; D004935:Esophageal Diseases / Q000000981:diagnostic imaging*; D004938:Esophageal Neoplasms / Q000000981:diagnostic imaging; D004947:Esophagus / Q000000981:diagnostic imaging*; D005547:Foreign Bodies / Q000000981:diagnostic imaging*; D006801:Humans; D008297:Male; D008460:Meat; D008875:Middle Aged; D011859:Radiography