L. A. Kopteva
Tula State University Medical Institute
Россия

Lyubov A. Kopteva — resident oncologist 

Tula 

E. G. Obiedkov
Kursk State Medical University
Россия

Evgeny G. Obiedkov — Candidate of Medical Sciences, Assistant of the Department of Surgical Diseases No. 1

Kursk

E. S. Mishina
Kursk State Medical University
Россия

Ekaterina S. Mishina — Candidate of Medical Sciences, Head of the Laboratory of Morphology and Cell Technologies of the Research Institute of Experimental Medicine, Associate Professor of the Department of Histology, Embryology, Cytology 

Kursk 

I. S. Ivanov
Kursk State Medical University
Россия

Ilya S. Ivanov — Doctor of Medical Sciences, Professor, Head of the Department of Surgical Diseases No. 1 

Kursk 

A. K. Terentyev
Tula Regional Dental Polyclinic
Россия

Andrey K. Terentyev — dentist-surgeon , medical and preventive department No. 7

Tula

N. Yu. Obiedkova
Kursk State Medical University
Россия

Natalia Y. Obiedkova — Assistant of the Department of Polyclinic Therapy and General Medical Practice 

Kursk