Studies excluded from further evaluation.

ASCT: autologous stem cell transplantation; IFN: Interferon; n/a: not available; SD = standard deviation; TLI: Total lymphoid irradiation; yrs: years.a: group size not specifiedb: single arm studyMS subtypes: CP = chronic progressive; P = primary progressive MS; iP = primary progressive MS with inflammatory activity; PR = progressive relapsing MS; R = relapsing remitting MS; S = secondary progressive MS; rfS = relapse-free secondary progressive MS; tMS = transitional MS;Reasons for exclusion: A = insufficient PPMS subgroup data available; B = only Conference Abstract available, insufficient design information and group data for further evaluation; C = single-arm study; D = study duration Studies excluded from further evaluation.