URL：https://www.shutterstock.com/shutterstock/photos/2473495319/display_1500/stock-vector-anatomy-of-heartburn-and-acid-reflux-with-labeled-parts-of-the-esophagus-and-stomach-diagram-hand-2473495319.jpg
掲載元：https://fity.club/lists/e/esophagus-diagram-simple./
