Editors' commentary

Affiliations

• ¹ Anesthesiology and Orthopaedics, Geisel School of Medicine at Dartmouth, Lebanon, New Hampshire, USA brian.d.sites@gmail.com.
• ² Anesthesiology, University of Michigan, Ann Arbor, Michigan, USA.
• ³ Anesthesiology, Rush University Medical Center, Chicago, Illinois, USA.
• ⁴ Anesthesiology and Critical Care Department, Hopital Lapeyronie, Montpellier, France.
• ⁵ Anesthesiology, Pain Medicine Division, Johns Hopkins School of Medicine, Baltimore, Maryland, USA.
• ⁶ Department of Anesthesiology and Critical Care Medicine, Johns Hopkins Univeristy, Baltimore, Maryland, USA.
• ⁷ Anesthesiology, Hospital for Special Surgery, New York, New York, USA.
• ⁸ Anesthesiology, Critical Care & Pain Management, Hospital for Special Surgery, New York, New York, USA.
• ⁹ Anesthesia and Pain Management, Toronto Western Hospital, Toronto, Ontario, Canada.
• ¹⁰ Anesthesia, McGill University, Montreal, Quebec, Canada.