TY JOUR TI Investigation of the Effectiveness and Safety of the Rehabilitation Program for Patients with Long Covid Using Aquatic Training KW sodium chloride mineral waters KW Long COVID KW aquatic training KW new coronavirus infection KW rehabilitation KW microcirculation KW cardiointervalography JO Bulletin of Rehabilitation Medicine AU Lobanov., A.A. AU Grishechkina., I.A. AU Fesyun., A.D. AU Rachin., A.P. AU Yakovlev., M.Y. AU Andronov., S.V. AU Barashkov., G.N. AU Lebedeva., O.D. AU Popov., A.I. AU Styazhkina., E.M. AU Ansokova., M.A. AU Vasil’eva., V.A. PY 2022 IS 21 PB Federal State Budgetary Institution «National Medical Research Center of Rehabilitation and Balneology» of Ministry of Healthcare of Russian Federation