In the experimental study on 6 mongrel dogs the comparative morphometry of layers of the wall of abdominal section of esophagus and small intestine was carried out. Tworowed microsurgical esophago-enteroanastomosis “end-to-end” was formed in 12 animals. From the surplus of the outer case of the esophagus a sphincter-like structure was created. https://herbsdailyes.shop/product-category/gum-relief/