A. V. Burlutskaya
Kuban State Medical University
Russian Federation

Alla V. Burlutskaya — Dr. Sci. (Med.), Assoc. Prof., Head of the Chair of Paediatrics No. 2

Mitrofanа Sedinа str., 4, Krasnodar, 350063

N. S. Kovalenko
Kuban State Medical University
Russian Federation

Natalya S. Kovalenko — Clinical Resident (1st year), Chair of Paediatrics No. 2

Mitrofanа Sedinа str., 4, Krasnodar, 350063

A. V. Statova
Kuban State Medical University
Russian Federation

Anastasia V. Statova — Cand. Sci. (Med.), Assoc. Prof., Chair of Paediatrics No. 2

Mitrofanа Sedinа str., 4, Krasnodar, 350063

Yu. V. Brisin
Children’s Regional Clinical Hospital
Russian Federation

Yurii V. Brisin — Research Assistant, Chair of Paediatrics No. 2, Kuban State Medical University; Physician, Oncology and Haematology Unit, Children’s Regional Clinical Hospital

Pobedy square, 1, Krasnodar, 350000