gastroscopy. endoscopy and digestive problems. hose with camera. procedure with internal organs

anatomy biology camera canal cancer diagnosis digestive education egd endometrial endoscope endoscopy esophagus exam examination flat gastric gastritis gastro gastrocamera gastrointestinal gastroscope gastroscopy healthy human illustration instrument internal intestinal intestine isolated light logo medical medicine mucous oesophagus organ peroral poster scheme science sign stomach symbol system test tract treatment vector