T. V. Prokofieva
Astrakhan State Medical University
Russian Federation

Cand. Sci. (Med.), Associate Professor of the Department of Internal Medicine of Pediatric Department,

121, Bakinskaya St., Astrakhan, 414000

O. S. Polunina
Astrakhan State Medical University
Russian Federation

Dr. Sci. (Med.), Professor, Head of the Chair of Internal Diseases of Pediatric Faculty, 

121, Bakinskaya St., Astrakhan, 414000

E. A. Polunina
Astrakhan State Medical University
Russian Federation

Cand. Sci. (Med.), Associate Professor of Internal Medicine Department of Pediatric Department,

121, Bakinskaya St., Astrakhan, 414000

I. V. Sevostyanova
Astrakhan State Medical University
Russian Federation

Cand. Sci. (Med.), Associate Professor of Internal Medicine Department of Pediatric Department,

P. N. Voronina
Astrakhan State Medical University
Russian Federation

Student of the 4th year of Medical Faculty, 

121, Bakinskaya St., Astrakhan, 414000