G. R. Sagitova
Astrakhan State Medical University
Russian Federation

Gulnara R. Sagitova, Dr. Sci. (Med.), Professor, Professor of the Department of Hospital Pediatrics and Neonatology

121, Bakinskaya St., Astrakhan, 41400

V. E.  Avedisyan
State Budgetary Healthcare Institution of the Astrakhan Region Regional Children’s Clinical Hospital named after N.N. Silishcheva
Russian Federation

Valery E. Avedisyan, Cand. Sci. (Med.), Head of the Otorhinolaryngological Department 

6, Medikov St., Astrakhan, 41400

V. M. Kalyanin
State Budgetary Healthcare Institution of the Astrakhan Region Regional Children’s Clinical Hospital named after N.N. Silishcheva
Russian Federation

Vladimir M. Kalyanin, Head of Surgical Department No. 2

6, Medikov St., Astrakhan, 41400

M. S. Ugai
Astrakhan State Medical University
Russian Federation

Maria S. Ugai, Resident of the Department of Hospital Pediatrics and Neonatology

121, Bakinskaya St., Astrakhan, 41400

D. M. Faradzhova
Saint Petersburg State University
Russian Federation

Diana M. Faradzhova, Student of Higher School of Journalism and Mass Communications

26, 1^st line of Vasilievsky Island, St Petersburg, 199004