[1] Otto von Guericke Univ, Dept Neurol, D-39120 Magdeburg, Germany
[2] Tatarstan Acad Sci, Inst Adv Studies, Kazan 422111, Russia
[3] Heidelberg Univ, Med Fac, Pain Ctr, Clin Anaesthesiol & Intens Care Med, Theodor Kutzer Ufer 1-3, D-68167 Mannheim, Germany
[4] Drexel Univ, Dept Surg, Coll Med, Philadelphia, PA 19102 USA
[5] Charles River Labs, Malvern, PA 19355 USA