LYCHKO, V.; KOLENKO, O.; BURTYKA, M. 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, v. 11, n. 1, p. 47-52, 29 Mar. 2023.