F. Sh. Akhmetzyanov
Kazan State Medical University; Republican clinical oncological dispensary of the Ministry of Health of the Tatarstan Republic 
Russian Federation

 MD, Professor, Head of the Department of Oncology, Radiation Diagnostics and Radiation Therapy

 49, Butlerova street, Kazan, 420012, Russia 

 29, Siberian Tract Street, Kazan, 420029, Russia

A. H. Kaulgud
Kazan State Medical University; Republican Clinical Oncology Center, Ministry of Health of the Republic of Tatarstan
Russian Federation

 MD, Postgraduate, Department of Oncology, Radiation Diagnostics and Radiation Therapy; oncologist

 49, Butlerova street, Kazan, 420012, Russia 

29, Siberian Tract Street, Kazan, 420029, Russia

F. F. Akhmetzyanova
Kazan State Medical University
Russian Federation

 MD, Assistant of the Department of Oncology, Radiation Diagnostics and Radiation Therapy

 49, Butlerova street, Kazan, 420012, Russia