[1] Hosp Special Surg, Dept Anesthesiol Crit Care & Pain Management, 535 E 70th St, New York, NY 10021 USA
[2] Weill Cornell Med Coll, Dept Anesthesiol Crit Care & Pain Management, New York, NY USA
[3] Paracelsus Med Private Univ, Dept Anesthesiol Perioperat Med & Intens Care Med, Salzburg, Austria
[4] VA Palo Alto Hlth Care Syst, Anesthesiol & Perioperat Care Serv, Palo Alto, CA USA
[5] Stanford Univ, Sch Med, Dept Anesthesiol Perioperat & Pain Med, Stanford, CA 94305 USA
[6] Mayo Clin, Dept Anesthesiol & Perioperat Med, Rochester, MN USA
[7] Oxford Univ Hosp NHS Fdn Trust, Nuffield Dept Anaesthet, Oxford, England
[8] Aretaie Univ Hosp, Fac Med, Athens, Greece
[9] Oregon Hlth & Sci Univ, Dept Anesthesiol & Perioperat Med, Portland, OR 97201 USA
[10] Balgrist Univ Hosp, Anesthesiol, Zurich, Switzerland
[11] Univ Valencia, Gen Hosp, Anesthesia Crit Care & Multidisciplinary Pain Man, Valencia, Spain
[12] Univ Valencia, Sch Med, Surg Specialties Dept, Anesthesia Unit, Valencia, Spain
[13] Guys & St Thomas NHS Fdn Trust, Anaesthesia, London, England
[14] Univ Penn, Anesthesiol & Crit Care, Philadelphia, PA 19104 USA
[15] Clin St Anne St Remi, Dept Anesthesiol & Resuscitat, Brussels, Belgium
[16] Hosp Special Surg, Dept Orthoped Surg, 535 E 70th St, New York, NY 10021 USA
[17] Weill Cornell Med Coll, Dept Orthoped Surg, New York, NY USA
[18] Peking Univ, Shougang Hosp, Dept Anesthesiol, Beijing, Peoples R China
[19] Belfast Hlth & Social Care Trust, Dept Anaesthesia, Belfast, Antrim, North Ireland
[20] Rigshosp, Dept Clin Med, Copenhagen, Denmark
[21] Univ Hosp Frankfurt, Anaesthesiol Intens Care Med & Pain Therapy, Frankfurt, Germany
[22] Univ Catholic Louvain, St Luc Hosp, Anesthesiol, Brussels, Belgium
[23] Glasgow Royal Infirm, Sch Med Dent & Nursing, Glasgow, Lanark, Scotland
[24] Stobhill Ambulatory Hosp, Glasgow, Lanark, Scotland
[25] Hosp Special Surg, Ctr Advancement Value Musculoskeletal Care, 535 E 70th St, New York, NY 10021 USA
[26] Weill Cornell Med Coll, Ctr Advancement Value Musculoskeletal Care, New York, NY USA
[27] Ottawa Hosp, Dept Anesthesiol & Pain Med, Ottawa, ON, Canada
[28] Virginia Mason Med Ctr, Anesthesiol, Seattle, WA 98101 USA
[29] Virginia Mason Med Ctr, Benaroya Res Inst, Seattle, WA 98101 USA
[30] Hosp Special Surg, Orthoped Surg, 535 E 70th St, New York, NY 10021 USA
[31] Rothman Orthopaed Inst, Orthoped Surg, Philadelphia, PA USA
[32] Univ Hlth Network, Toronto Western Hosp, Anesthesia, Toronto, ON, Canada
[33] Icahn Sch Med Mt Sinai, Orthopaed Populat Hlth Sci & Policy, New York, NY 10029 USA
[34] New York Langone Orthopaed Hosp, Dept Orthopaed Surg, New York, NY USA
[35] Thomas Jefferson Univ, Sidney Kimmel Med Coll, Dept Anesthesiol, Philadelphia, PA 19107 USA
[36] Dartmouth Med Sch, Anesthesiol, Hanover, NH USA
[37] Med Univ Innsbruck, Dept Anesthesiol & Intens Care, Innsbruck, Austria
[38] Thomas Jefferson Univ, Sidney Kimmel Med Coll, Dept Anesthesiol, Philadelphia, PA 19107 USA
[39] Univ Illinois Hosp & Hlth Sci Syst, Dept Anesthesiol, Chicago, IL USA