doctor conducts gastroscopy to patient. gastroenterologist conducts research of digestive system

research tools laboratory gastroenterologist procedure stomachache gastroscopy equipment ultrasound tract clinic system patient diagnostic xray microscope set flat design trendy style banner girl cute woman female character digestion person microbial device diagnostics test treatment microflora organ healthy science anatomy hospital concept lab cartoon disease doctor care health stomach people human medical vector medicine conducts patient digestive system diagnosis diseases study intestinal microflora stomach