I want to express my immense gratitude to the gastroenterologist Kovaleva Oksana Ivanovna who has been observing me since 2013. This is a competent specialist of the highest level. Very kind, sensitive and attentive. It is very pleasant to come to her for an appointment, she will listen to all complaints, look, she feels the state of the intestines with her professional hands, as once in 2013 she discovered a tumor in my ascending colon. Oksana Ivanovna, I wish you good health, take care of yourself, your patients need you. I also want to thank for always polite and timely assistance to patients administrator, nurse Borisyak Olga a very sensitive and attentive person. Professional in his field, conflict-free, will always answer all questions without irritation, very smart specialist. Olga, I wish you also good health, take care of yourself. If there will be no such as Kovaleva O.I., Borisyak Olya, as the head of the Department Bykova Svetlana Ivanovna then the world will get worse. Thank you!