Characteristics of clinical trials with no control group.

Abbreviations:− = not applicable, ALS = amyotrophic lateral sclerosis, AUS = Australia, BEL = Belgium, C = control group, CV = central venous, GRC = Greece, GVHD = graft-versus-host disease, IA = intraarterial, ICN = intracranially, IRN = Iran, ISR = Israel, IC = intracoronary, IT = intrathecal, ITL = Italy, IV = peripheral intravenous, JPN = Japan, IM = intramyocardial, L = low dose, M = middle dose, MLD = metachromatic leukodystophy, MS = multiple sclerosis, SD = standard deviation, NL = Netherlands, NR = not reported, PRC = People's Republic of China, SLE = systemic lupus erythematosus, SWE = Sweden, USA = United States of America.* = mean (range),+ = range,¥ = median (range).