Upper gastrointestinal tract.
Shimizu
S
S
Department of Gastroenterology, Kyoto First Red Cross Hospital, Japan.
Tada
M
M
Kawai
K
K
D004378:Duodenal Diseases / Q000000981:diagnostic imaging*; D004935:Esophageal Diseases / Q000000981:diagnostic imaging*; D006801:Humans; D013272:Stomach Diseases / Q000000981:diagnostic imaging*; D014463:Ultrasonography