Belching caused inversion of the inserted gastroscope.
Sundblad
M
M
Bokredaktionen, Läkartidiningen, Stockholm.
D004947:Esophagus / Q000000981:diagnostic imaging; D020699:Gastroscopes; D005773:Gastroscopy / Q000009:adverse effects*; D006801:Humans; D008297:Male; D008875:Middle Aged; D011859:Radiography