[Endoscopic ultrasonography of the upper gastrointestinal tract].
D004064:Digestive System / Q000473:pathology*; D004724:Endoscopy / Q000379:methods*; D005767:Gastrointestinal Diseases / Q000175:diagnosis; D006801:Humans; D014463:Ultrasonography / Q000379:methods*
Endoskopische Ultrasonographie des oberen Gastrointestinaltraktes.