190
Participants
Start Date
September 30, 2021
Primary Completion Date
December 24, 2021
Study Completion Date
June 30, 2022
Head box during upper gastrointestinal endoscopy
"็Head box is an acrylic box over a patient's head who undergoing upper gastrointestinal endoscopy."
King Chulalongkorn Memorial Hospital, Bangkok
King Chulalongkorn Memorial Hospital
OTHER