[1] Maastricht Univ Med Ctr, Dept Anesthesiol & Pain Management, NL-6202 AZ Maastricht, Netherlands
[2] Catharina Hosp, Dept Anesthesiol & Pain Management, Eindhoven, Netherlands
[3] Inst Anesthesiol, Pain Management Dept, Cleveland, OH USA
[4] Cleveland Clin, Bradenton, FL USA
[5] Ziekenhuis Oost Limburg, Dept Anesthesiol, Genk, Belgium
[6] Ziekenhuis Oost Limburg, Ctr Multidisciplinary Pain, Genk, Belgium