[1] Med Univ Innsbruck, Dept Neurol, Innsbruck, Austria
[2] Univ Coimbra, Dept Neurol, Fac Med, Coimbra, Portugal
[3] IRCCS Ist Sci Neurol Bologna, Bologna, Italy
[4] EAN Sci Panel Auton Nervous Syst Disorders, London, England
[5] Osped Civ, Neuroctr Southern Switzerland, Lugano, Switzerland
[6] Transilvania Univ, Dept Neurol, Fac Med, Brasov, Romania
[7] Icahn Sch Med Mt Sinai, New York, NY 10029 USA
[8] Univ Erlangen Nurnberg, Erlangen, Germany
[9] Natl Hosp Neurol & Neurosurg, Auton Unit, Queen Sq, London, England
[10] UCL, UCL Queen Sq Inst Neurol, Fac Brain Sci, London, England
[11] German Aerosp Ctr, Cologne, Germany
[12] Maasstad Ziekenhuis, Dept Neurol, Rotterdam, Netherlands
[13] Natl Inst Mental Hlth Neurol & Neurosurg, Dept Neurol, Budapest, Hungary
[14] Ctr Hosp Univ Toulouse, Dept Neurol, Toulouse, France
[15] Univ Lisbon, Inst Physiol, Fac Med, Lisbon, Portugal
[16] Landesklinikum Mistlbach Ganserndorf, Mistelbach, Austria
[17] Paracelsus Med Univ, Christian Doppler Med Ctr, Salzburg, Austria
[18] Aarhus Univ Hosp, Dept Neurol, Aarhus, Denmark
[19] Aarhus Univ, Danish Pain Res Ctr, Aarhus, Denmark
[20] Univ Zagreb, Fac Elect Engn & Comp, Zagreb, Croatia
[21] Univ Hosp Ctr, Dept Neurol, Zagreb, Croatia
[22] Leiden Univ Med Ctr, Dept Neurol, Leiden, Netherlands
[23] Karl Landsteiner Univ Hlth Sci, Univ Hosp Tulln, Dept Neurol, Tulln, Austria