V. S. Chulkov
Yaroslav-the-Wise Novgorod State University
Russian Federation

Vasiliy S. Chulkov — Dr. Sci. (Med.), Prof., Department of Internal Diseases

Bolshaya Sankt-Petersburgskaya str., 41, Veliky Novgorod, 173003

L. V. Medvedeva
South Ural State Medical University
Russian Federation

Larisa V. Medvedeva — Cand. Sci. (Med.), Assoс. Prof., Department of Faculty Pediatrics

Vorovskogo str., 64, Chelyabinsk, 454141

E. E. Minina
South Ural State Medical University
Russian Federation

Elena E. Minina — Cand. Sci. (Med.), Assoс. Prof., Department of Faculty Pediatrics

Vorovskogo str., 64, Chelyabinsk, 454141

E. V. Fastakovskaya
City Clinical Hospital No. 1
Russian Federation

Elena V. Fastakovskaya — Radiologist, Radiology Department

Chelyabinsk, Vorovskogo str., 16, Chelyabinsk, 454092