1. Abdrahmanova, A.I., Amirov, N.B., & Sayfullina, G.B. (2015). Bezbolevaya ishemiya miokarda (obzor literatury). [Painless myocardial ischemia (literature review)]. Vestnik sovremennoy klinicheskoy meditsiny – Bulletin of Modern Clinical Medicine, 8 (6), 103-115 [in Russian].
2. Vatutin, N.T., Kalinkina, N.V., Keting, E.V., Sklyannaya, E.V., Kashanskaya, O.K., & Shevelek, A.N. (2010). Bezbolevaya ishemiya miokarda [Painless myocardial ischemia]. Prakticheskaya angiologiya – Practical Angiology, (3), 97-103 [in Ukrainain].
3. Kirillov, A.M. (2015). Patsiyenty s sochetaniyem ishemicheskoy bolezni serdtsa i khronicheskoy obstruktivnoy bolezni legkikh: klinicheskie proyavleniya i harakternye osobennosti pokazateley funktsionalnykh metodov issledovaniya [Patients with a combination of coronary heart disease and chronic obstructive pulmonary disease: clinical manifestations and characteristic features of indicators of functional research methods]. Sovremennye problemy nauki i obrazovaniya – Modern Problems of Science and Education, (4), 394-394 [in Russian].
4. Grigoryeva, N.Yu., Mayorova, M.V., Korolyova, M.E., & Samolyuk, M.O. (2019). Osobennosti formirovaniya i razvitiya serdechno-sosudistykh zabolevaniy u bolnykh khronicheskoy obstruktivnoy boleznyu legkikh [Features of the formation and development of cardiovascular diseases in patients with chronic obstructive pulmonary disease]. Terapevticheskiy arhiv – Therapeutic Archive, 91 (1), 43-47 [in Russian].
5. Chuchalin, A.G. (2008). Khronicheskaya obstruktivnaya bolezn legkikh i soputstvuyushie zabolevaniya. Chast I. HOBL i porazheniya serdechno-sosudistoy sistemy [Chronic obstructive pulmonary disease and related diseases. Part I. COPD and lesions of the cardiovascular system]. RMZh – Russian Medical Journal, 16 (2), 58-64 [in Russian].