Alexander T Kim1, Anthony W Kim2,3. 1. Keck School of Medicine, University of Southern California, Los Angeles, CA, USA. 2. Keck School of Medicine, University of Southern California, Los Angeles, CA, USA. Anthony.kim@med.usc.edu. 3. Division of Thoracic Surgery, Department of Surgery, Keck School of Medicine, University of Southern California, 1510 San Pablo St., Suite 514, Los Angeles, CA, USA. Anthony.kim@med.usc.edu.