Study patients
gastrointestinal complaints
Patients aged from 18 to 80 years old and willing to undergo both UMGI capsule and EGD examination with or without gastrointestinal complaints were prospectively recruited in Changhai Hospital from March to August 2020, in which the asymptomatic subjects were healthy volunteers. Examination of UGI tract with/without small bowel were confirmed according to their clinical manifestations and requirements. Basic characteristics, gastrointestinal complaints, and 