Is Nanjing National Gastrointestinal Survey True or False?

Really. It is true that the gastrointestinal survey in Nanjing is a public welfare activity in Nanjing. Gastrointestinal tract generally refers to the stomach, small intestine and large intestine of digestive system, which are the core of nutrient absorption. Almost all the nutrients needed by the human body need to pass through the stomach, and the stomach has become the most important digestive organ.