[1] Jena Univ Hosp, Dept Anesthesiol & Intens Care, Erlanger Allee 101, D-07740 Jena, Germany
[2] Univ Utah, Pain Res Ctr, Dept Anesthesiol, Salt Lake City, UT USA
[3] Prizen Reg Hosp, Dept Anesthesiol & Intens Care, Prizen, Kosovo
[4] Univ Porto, Fac Med, Dept Biomed, Porto, Portugal
[5] Rahima Moosa Mother & Child Hosp, Dept Anesthesiol & Intens Care, Bedfordview, South Africa
[6] Charite, Dept Anesthesiol & Intens Care, Campus Benjamin Franklin, Berlin, Germany
[7] Southern Med Univ, Zhujiang Hosp, Dept Nursing, Guangzhou, Peoples R China
[8] Hosp Kuala Lumpur, Dept Anesthesiol & Intens Care, Kuala Lumpur, Malaysia
[9] Univ Coll Hosp, Dept Plast Reconstruct & Aesthet Surg, Ibadan, Nigeria
[10] Culion Sanitarium & Gen Hosp, Dept Anesthesiol & Intens Care, Culion, Philippines
[11] Ctr Palliat Care, Dept Hosp & Palliat Care, Ibadan, Nigeria
[12] Mil Hosp, Dept Anesthesiol & Intens Care, Belgrade, Serbia
[13] Sir Run Run Shaw Hosp, Dept Anesthesiol & IntensWe Care, Hangzhou, Peoples R China