T. G. Malanicheva
Kazan State Medical University
Russian Federation

Tatyana G. Malanicheva, Dr. Sci. (Med.), Professor of the Department of Propaedeutics of Children’s Diseases and Faculty Pediatrics

49, Butlerov St., Kazan, 420012, Russia 

N. V. Ziatdinova
Kazan State Medical University
Russian Federation

Nelli V. Ziatdinova, Cand. Sci. (Med.), Associate Professor of the Department of Propaedeutics of Children’s Diseases and Faculty Pediatrics 

49, Butlerov St., Kazan, 420012, Russia 

Ch. I. Ashrafullina
Children’s Republican Clinical Hospital
Russian Federation

Chulpan I. Ashrafullina, Head of Pediatric Department No. 1

140, Orenburgskiy Тract St., Kazan, 420138, Russia