TY JOUR TI Hypoxic Conditioning in Rehabilitation and Secondary Prevention Programs in Cardiac Patients with Multimorbidity: a Review KW Cardiac rehabilitation KW comorbidity KW hypoxic conditioning KW interval hypoxic training JO Bulletin of Rehabilitation Medicine AU Lyamina., N.P. AU Spirina., G.K. AU Glazachev., O.S. PY 2022 IS 21 PB Federal State Budgetary Institution «National Medical Research Center of Rehabilitation and Balneology» of Ministry of Healthcare of Russian Federation