M. S. Matevosova
Pyatigorsk Medical and Pharmaceutical Institute – branch of Volgograd State Medical University.
Russian Federation

student of the Faculty of Medicine of Pyatigorsk Medical and Pharmaceutical Institute – branch of Volgograd State Medical University.

11 Kalinin Ave., Pyatigorsk, Russia, 357532.

L. I. Agapitov
Pyatigorsk Medical and Pharmaceutical Institute – branch of Volgograd State Medical University.
Russian Federation

Doctor of Sciences (Medicine), Professor of the Department of Therapeutic Disciplines of Pyatigorsk Medical and Pharmaceutical Institute – branch of Volgograd State Medical University.

11 Kalinin Ave., Pyatigorsk, Russia, 357532.

I. A. Averina
1. Pyatigorsk Medical and Pharmaceutical Institute – branch of Volgograd State Medical University. 2.Clinical Hospital No. 10 – branch of North Caucasus Federal Scientific and Clinical Center.
Russian Federation

Candidate of Sciences (Medicine), senior lecturer of the Department of Therapeutic Disciplines of Pyatigorsk Medical and Pharmaceutical Institute – branch of Volgograd State Medical University; Head of the Pediatric Department of Clinical Hospital No. 10 – branch of North Caucasus Federal Scientific and Clinical Center (Lermontov, Russia).

1. 11 Kalinin Ave., Pyatigorsk, Russia, 357532.

2. 26 Lenin Str., Lermontov, Russia, 357341.

I. V. Sokolova
Clinical Hospital No. 10 – branch of North Caucasus Federal Scientific and Clinical Center.
Russian Federation

Deputy Head of the Medical Department of Clinical Hospital No. 10 – branch of North Caucasus Federal Scientific and Clinical Center (Lermontov, Russia).

26 Lenin Str., Lermontov, Russia, 357341.

S. V. Zotova
Clinical Hospital No. 10 – branch of North Caucasus Federal Scientific and Clinical Center
Russian Federation

Head of the children's clinic of Clinical Hospital No. 10 – branch of North Caucasus Federal Scientific and Clinical Center (Lermontov, Russia).

26 Lenin Str., Lermontov, Russia, 357341.

R. A. Chernigovskiy
1. Pyatigorsk Medical and Pharmaceutical Institute – branch of Volgograd State Medical University. 2. Clinical Hospital No. 10 – branch of North Caucasus Federal Scientific and Clinical Center.
Russian Federation

teacher of the Department of Therapeutic Disciplines of Pyatigorsk Medical and Pharmaceutical Institute – branch of Volgograd State Medical University; Pediatrician of the pediatric department of Clinical Hospital No. 10 – branch of North Caucasus Federal Scientific and Clinical Center (Lermontov, Russia).

1. 11 Kalinin Ave., Pyatigorsk, Russia, 357532.

2. 26 Lenin Str., Lermontov, Russia, 357341.