A. S. Spirina
Don State Technical University; Educational Veterinary Center “Dentalvet”
Russian Federation

Anna S. Spirina, Cand. Sci. (Veterinary Medicine), Head of the Dentistry and Oral and Maxillofacial Surgery Department

1, Gagarin Sq., Rostov-on-Don, 344003;

Senior Lecturer

2/1, Aviakonstruktora Milya Str., Moscow, 109431

O. A. Spirina
Russian Biotechnological University (ROSBIOTECH)
Russian Federation

Olga A. Spirina, Postgraduate Student

33, Talalikhin Str., Moscow, 109029

A. S. Spirin
Moscow University for the Humanities; Educational Veterinary Center “Dentalvet”
Russian Federation

Artem S. Spirin, Postgraduate Student

2/1, Aviakonstruktora Milya Str., Moscow, 109431;

Head

2/1, Aviakonstruktora Milya Str., Moscow, 109431