[Role of gastroscopy in the diagnosis of chronic gastritis and gastric ulcer].
D005756:Gastritis / Q000175:diagnosis*; D005773:Gastroscopy; D006801:Humans; D013276:Stomach Ulcer / Q000175:diagnosis*
Znachenie gastroskopii v diagnostike khronicheskogo gastrita i iazvennoĭ bolezni zheludka.