Main article: Stomach
2022: Russia has developed a sensor that determines the early stages of gastritis and ulcers from saliva analysis
In mid-June 2022, it became known about the creation of a chemical sensor in Russia, which allows the analysis of saliva to determine gastritis and ulcer. This is the development of the Ural Federal University named after the first President of Russia B.N. Yeltsin (UrFU). Read more here.