1 Christine M. Kleinert Institute for Hand and Microsurgery, 225 Abraham Flexner Way, Suite 850, Louisville, KY, 40202, USA.
2 Division of Hand Surgery, Department of Surgery, University of Louisville School of Medicine, 225 Abraham Flexner Way, Suite 850, Louisville, KY, 40202, USA.
3 University of Tennessee Health Science Center, General Surgery Department, 4220 Harding Pike, Nashville, TN, 37205, USA.