1. Department of Radiology, SUNY Downstate Health Sciences University, 450 Clarkson Ave, Brooklyn, NY 11203
2. Department of Medicine, Division of Pulmonary and Critical Care Medicine, SUNY Downstate Health Sciences University, Brooklyn, NY
3. Vision Radiology, Dallas, TX
4. Department of Radiology and Medicine, Section of Emergency Radiology, Penn State Milton S. Hershey Medical Center, Hershey, PA