1. Johns Hopkins Medicine, Baltimore, MD, USA
2. Virginia Commonwealth University, Richmond, VA, USA (Emeritus)
3. Woodruff Health Sciences Center, Emory University, Atlanta, GA, USA
4. Stony Brook Medicine, Stony Brook, NY, USA
5. Emory Spiritual Health, Emory University, Atlanta, GA, USA
6. Memorial Hermann, Houston, TX, USA
7. Indiana University School of Medicine, Indianapolis, IN, USA