H. Kuusisto a, ⁎ , P. Hujanen b, c, T. Mattila b, T. Luukkaala d, e, T. Keränen f, g, h
a Department of Neurology, Kanta-Häme Central Hospital, Ahvenistontie 20, 13130 Hämeenlinna, Finland
b Medical School, Tampere University, Tampere, Finland
c Department of Neurosurgery, Tampere University Hospital, Tampere, Finland
d Research Unit, Pirkanmaa Hospital District, Tampere, Finland
e Tampere School of Public Health, University of Tampere, Tampere, Finland
f Department of Pharmacy, University of Eastern Finland, Kuopio, Finland
g Science Service Center, Kuopio University Hospital, Kuopio, Finland
h National Institute for Health and Welfare, Helsinki, Finland