Anton Katukhin is a Reseasrcher in the Department of Epidemiology, at Kemerovo State Medical Academy, in Kemerovo, Russian Federation. Arseniy Yuzhalin is a Researcher in the Department of Epidemiology, at Kemerovo State Medical Academy, in Kemerovo, Russian Federation. Elena Brusina, MD, PhD, is the Head of the Department of Epidemiology, at Kemerovo State Medical Academy, in Kemerovo, Russian Fedderation