INTRODUCTION The digestive tract normally contains gas (air), which is eliminated from the body through the mouth or through the anus: Belching is the term used to indicate the escape of air from the stomach through the mouth (popularly through
INTRODUCTION The digestive tract normally contains gas (air), which is eliminated from the body through the mouth or through the anus: Belching is the term used to indicate the escape of air from the stomach through the mouth (popularly through