Approaches and challenges in the diagnosis and management of secondary progressive multiple sclerosis : a Central Eastern European perspective from healthcare professionalsBoyko, Aleksey; Therapontos, Christina; Horakova, Dana; Szilasiova, Jarmila; Kalniņa, Jolanta; Gross-Paju, KatrinMultiple sclerosis and related disorders2021 / art. 102778, 12 p. : ill https://doi.org/10.1016/j.msard.2021.102778 Journal metrics at Scopus Article at Scopus Journal metrics at WOS Article at WOS