Lychko, V., Kolenko, O. and Burtyka, M. (2023) “DIFFERENTIAL DIAGNOSIS OF EXACERBATIONS AND PSEUDO-EXACERBATIONS AGAINST THE BACKGROUND OF SARS-COV-2 BY THE EXAMPLE OF A CLINICAL CASE OF A PATIENT WITH MULTIPLE SCLEROSIS”, Eastern Ukrainian Medical Journal, 11(1), pp. 47-52. doi: 10.21272/eumj.2023;11(1):47-52.