I want to express my gratitude to the gastroenterologist Zaitseva Svetlana Vladimirovna. A very qualified doctor! She helped me with the treatment before the additional tests were known. According to the tests that I had, I was able to prescribe the exact drugs.. At that time, I was given this doctor by fate. I am grateful to this person, who can accurately determine the degree of the disease by analysis. Thank you for your knowledge!