1 School of Medicine, Wayne State University, Detroit, MI 48201, USA; Department of Anesthesiology, University of Southern California, Los Angeles, CA 90089, USA. Electronic address: gm3180@wayne.edu.
2 Department of Anesthesiology and Perioperative Medicine, University of California Los Angeles, Los Angeles, CA, USA.
3 Department of Orthopaedic Surgery, University of Southern California, Los Angeles, CA 90089, USA.
4 Department of Psychiatry and Human Behavior, University of California Irvine, Orange, CA 92886, USA.
5 Department of Orthopedics, Detroit Medical Center, Detroit, MI 48201, USA.
6 School of Medicine, Wayne State University, Detroit, MI 48201, USA.
7 Department of Anesthesiology, University of Southern California, Los Angeles, CA 90089, USA.