aPain Research Unit, Institute of Pain Medicine, Rambam Health Care Campus, Haifa, Israel
bRappaport Faculty of Medicine, Technion—Israel Institute of Technology, Haifa, Israel
cDepartment of Neurology, Rambam Health Care Campus, Haifa, Israel
Sponsorships or competing interests that may be relevant to content are disclosed at the end of this article.
Received March 26, 2018
Accepted March 29, 2018