aDepartment of Anesthesia, University of Iowa, Iowa City, Iowa, USA

bDepartment of Anesthesiology, Perioperative Medicine & Pain Management, University of Miami, Miami, Florida, USA

Correspondence to Franklin Dexter, MD, PhD, FASA, Division of Management Consulting, Department of Anesthesia, University of Iowa, 200 Hawkins Drive, 6-JCP, Iowa City, IA 52242, USA. Tel: +1 3196216360; e-mail: [email protected]