1. Redinova T. L., Perova N. Yu., Petrova O. S. Dental and somatic comorbidity in periodontitis. ores of the Izhevsk State Medical Academy: Collection of scientific articles. Volume 58. - Izhevsk: State budgetary educational institution of higher professional education "Izhevsk State Medical Academy" of the Ministry of Health of the Russian Federation. 2020; 120-121.
2. Tlish M. M., Naatyzh Zh. Yu., Kuznetsova T. G. Comorbidity as an interdisciplinary problem: forecasting possibilities. Attending doctor. 2020; (10): 55-58. https://doi.org/10.26295/OS.2020.52.84.012.
3. Dmitrieva V. F., Chibisova M. A., Batyukov N. M. et al. Comorbid conditions in the practice of a dentist. Institute of Dentistry. 2020; 2(87): 26-27.
4. Makedonova Yu. A., Alexandrina E. S., Dyachenko S. V., Afanaseva O. Yu. et al. Analysis of crystallograms of oral fluid in the dynamics of treatment of patients with pathology of the oral mucosa. Endodontics Today. 2022; 20(1); 64-71. DOI 10.36377/1726-7242-2022-20-1-64-71.
5. Smetanina O. A., Kazarina L. N., Gordetsov A. S., Krasnikova O. V. Early diagnosis of chronic catarrhal gingivitis using infrared spectroscopy of oral biological fluids. Endodontics Today. 2018.; 4:60-63. DOI 10.25636/PMP.2.2018.4.14.