L. D. Zhuikova
Cancer Research Institute, Tomsk National Research Medical Center, Russian Academy of Sciences
Russian Federation

 MD, PhD, Head of Epidemiology Laboratory

Researcher ID (WOS): C-8293-2012. Author ID (Scopus):  56626111900. 

 5, Kooperativny street, 634050, Tomsk, Russia 

E. L. Choynzonov
Cancer Research Institute, Tomsk National Research Medical Center, Russian Academy of Sciences; Siberian State Medical University
Russian Federation

 MD, DSc, Member of the Russian Academy of Sciences, Professor, Head of Head and Neck Department, Director; Head of Oncology Department

Researcher ID (WOS): P-1470-2014. Author ID (Scopus): 6603352329 

 5, Kooperativny street, 634050, Tomsk, Russia 

 2, Moscow Trakt, 634050, Tomsk, Russia 

O. A. Ananina
Cancer Research Institute, Tomsk National Research Medical Center, Russian Academy of Sciences
Russian Federation

 MD, PhD, Senior Researcher, Epidemiology Laboratory

Researcher ID (WOS) D-8708-2012. Author ID (Scopus): 56366338100 

 5, Kooperativny street, 634050, Tomsk, Russia 

A. S. Zhuikova
Siberian State Medical University
Russian Federation

 student

 2, Moscow Trakt, 634050, Tomsk, Russia 

T. V. Polychuk
Cancer Research Institute, Tomsk National Research Medical Cancer, Russian Academy of Sciences 
Russian Federation

 MD, PhD, Head of the Department of Consultative and Hospital Admission

 5, Kooperativny street, 634050, Tomsk, Russia