S. V. Minaev
Stavropol State Medical Universit.
Russian Federation

Professor Sergey Viktorovich Minaev, MD, PhD, Head of Department of Pediatric Surgery. Stavropol State Medical University.

 Stavropol 

I. V. Pavlenko
Stavropol State Medical University.
Russian Federation

Igor Vladimirovich Pavlenko, MD, Assistant of Professor of Department of Polyclinic Surgery with a Course of Urology. Stavropol State Medical University.

 Stavropol.

P. I. Chumakov
Stavropol State Medical University.
Russian Federation

Professor Pyotr Ilich Chumakov, MD, PhD, Professor of Department of Polyclinic Surgery with a Course of Urology. Stavropol State Medical University.

 Stavropol.

A. E. Matsionis
Pathologic Bureau.
Russian Federation

Matsionis ALeksandr Eduardovich, MD, Head of Pathologic Bureau.

Rostov-on-Don.