Paced visual serial addition test in multiple sclerosis.
Nagels G, Geentjens L, Kos D, Vleugels L, D'hooghe MB, Van Asch P, Vuylsteke K, De Deyn PP.
Nagels G, et al.
Clin Neurol Neurosurg. 2005 Apr;107(3):218-22. doi: 10.1016/j.clineuro.2004.11.016.
Clin Neurol Neurosurg. 2005.
PMID: 15823678
Clinical Trial.