Key points are not available for this paper at this time.
aDepartment of Neurology, Aarhus University, DK 8000 Aarhus C, Denmark bDanish Pain Research Center, Aarhus University, DK 8000 Aarhus C, Denmark cKlinik für Neurologie, Christian-Albrechts-Universität, Kiel, Germany ∗Corresponding author. Tel.: +45-8949-3283; fax: +45-8949-3300 E-mail: email protected
Jensen et al. (Sat,) studied this question.