Cognitive profiles of chronic cerebrospinal venous insufficiency (CCSVI) negative (n = 45) and positive (n = 64) multiple sclerosis patients. Each value represents a z score based on previously published normative data accounting for demographic variables. There are no significant differences for any test.
Benedict et al. BMC Medicine 2013 11:167 doi:10.1186/1741-7015-11-167