1Department of Internal Medicine, University of Texas Southwestern Medical Center, Dallas, Texas, USA;

2NYU Langone Medical Center, New York, New York, USA;

3Mount Sinai School of Medicine, New York, New York, USA;

4University of Texas, Dell School of Medicine, Austin, Texas, USA;

5Department of Emergency Medicine, University of Texas Southwestern Medical Center, Dallas, Texas, USA.

Correspondence: William M. Lee, MD. E-mail: [email protected].