T. A. Andreeva
City Center for the Treatment of Hemophilia Patients, City Polyclinic № 37
Russian Federation

Cand. of Sci. (Med.), Hematologist, Head, Author ID: 954196, SPIN-code: 8529-6758.

6 Gorokhovaya St., S.-Petersburg, 191186

I. A. Lavrichenko
City Center for the Treatment of Hemophilia Patients, City Polyclinic № 37
Russian Federation

Hematologist.

6 Gorokhovaya St., S.-Petersburg, 191186

O. A. Krasheninnikova
City Center for the Treatment of Hemophilia Patients, City Polyclinic № 37
Russian Federation

Clinical Laboratory Diagnostics Docto.

A. K. Gurina
Saint-Petersburg State Pediatric Medical University, Ministry of Health of Russia
Russian Federation

6^th year Student of the Faculty of Pediatrics, SPIN-code: 3711-8953, Author ID: 1038862.

2 Litovskaya St., S.-Petersburg, 194100

A. A. Bykov
Saint-Petersburg State Pediatric Medical University, Ministry of Health of Russia
Russian Federation

5^th year Student of the Faculty of Pediatrics, SPIN-code:4437-9031.

2 Litovskaya St., S.-Petersburg, 194100

А. L. Nesterchuk
Saint-Petersburg State Pediatric Medical University, Ministry of Health of Russia
Russian Federation

6^th year Student of the Faculty of Pediatrics, SPIN-code: 1278-8292.

2 Litovskaya St., S.-Petersburg, 194100

K. A. Papayan
Saint-Petersburg State Pediatric Medical University, Ministry of Health of Russia
Russian Federation

Cand. of Sci. (Med.), Associate Professor Department of Faculty of Pediatrics, SPIN-code: 7437-0916, Author ID: 783499.

2 Litovskaya St., S.-Petersburg, 194100

V. V. Avramenko
Saint-Petersburg State Pediatric Medical University, Ministry of Health of Russia
Russian Federation

Cand. of Sci. (Med.), Orthopedist-traumatologist, Head ofthe Surgical Department No. 2.

2 Litovskaya St., S.-Petersburg, 194100

A. G. Veselov
Saint-Petersburg State Pediatric Medical University, Ministry of Health of Russia
Russian Federation

A.                 Cand. of Sci. (Med.), Orthopedist-traumatologist Surgical Department No. 2, SPIN-код: 7502-2280.

2 Litovskaya St., S.-Petersburg, 194100

S. I. Yakunin
Saint-Petersburg State Pediatric Medical University, Ministry of Health of Russia
Russian Federation

Cand. of Sci. (Med.), Pediatric Surgeon, Head ofthe Surgical Department ofthe Consultative and Diagnostic Center.