T. A. Ruzhentsova
Central Research Institute of Epidemiology
Russian Federation

Tatiana A. Ruzhentsova - Dr. of Sci. (Med), Head of clinical research Department, professor of Educational Center.

3a, Novogireevskaya St., Moscow, 111123

D. A. Khavkina
Central Research Institute of Epidemiology
Russian Federation

Daria А. Khavkina - Statistic of clinical research Department.

3a, Novogireevskaya St., Moscow, 111123

A. A. Ploskireva
Central Research Institute of Epidemiology
Russian Federation

Antonina A. Ploskireva - Dr. of Sci. (Med), Deputy Director for clinical work.

3a, Novogireevskaya St., Moscow, 111123

N. A. Meshkova
I.M. Sechenov First Moscow State Medical University (Sechenov University)
Russian Federation

Natalia A. Meshkova - Student of 2th course of Faculty “Institute of Children's Health".

8, p. 2, Trubetskaya St., Moscow, 119991