S. S. Nikitin
Petrozavodsk State University; Children’s Republican Hospital named after I.N. Grigovich
Russian Federation

Sergei S. Nikitin, Dr. Sci. (Med.), Professor of the Center for Postgraduate Education of the Medical Institute, Petrozavodsk State University; Head of the Surgical Department and of the Center for Pediatric Urology, Andrology and Nephrol ogy, Children’s Republican Hospital named after I.N. Grigovich

33, Lenin Ave., Petrozavodsk, 185002, 

58, Parkovaya St., Petrozavodsk, 185002

N. B. Guseva
Pirogov Russian National Research Medical University; Children’s City Clinical Hospital No. 9 named after G.N. Speransky; Russian Medical Academy of Continuing Professional Education
Russian Federation

Natalia B. Guseva, Dr. Sci. (Med.), Head of the Moscow City Center of Pediatric Urology, Andrology and Pathology of Pelvic Organs, Children’s City Clinical Hospital No. 9 named after G.N. Speransky; Chief Researcher of the Department of Pediatric, Pirogov Russian National Research Medical University; Professor of the Department of Pediatric named after G.N. Speransky, Russian Medical Academy of Continuing Professional Education

29, Shmitovskiy Proezd, Moscow,123317, 

2, Taldomskaya St., Moscow, 125412,

28, Geroev Panfilovtsev St., Moscow, 125373

A. A. Kartseva
Petrozavodsk State University
Russian Federation

Alina A. Kartseva, Clinical Resident of the Department of Pediatrics and Pediatric Surgery of the Medical Institute

33, Lenin Ave., Petrozavodsk, 185002

M. V. Lepiseva
Children’s Republican Hospital named after I.N. Grigovich
Russian Federation

Mikhail V. Leukhin, Ultrasound Diagnostics Doctor

58, Parkovaya St., Petrozavodsk, 185002

I. V. Lepiseva
Children’s Republican Hospital named after I.N. Grigovich
Russian Federation

Inga V. Lepiseva, Chief Physician

58, Parkovaya St., Petrozavodsk, 185002