TY JOUR TI Assessment of exercise tolerance in patients with amputation defects of the lower limbs KW amputation of lower limbs defects KW exercise tolerance KW prosthetics KW functional diagnostics KW manual veloergometry JO Bulletin of Rehabilitation Medicine AU Bolotov, D.D. AU Rusakevich, A.P. AU Starikov, S.M. PY 2019 IS 2019 PB Federal State Budgetary Institution «National Medical Research Center of Rehabilitation and Balneology» of Ministry of Healthcare of Russian Federation