1. Perelman School of Medicine at the University of Pennsylvania, Philadelphia
2. Cooper Medical School of Rowan University, Camden, New Jersey; Chung Institute of Integrative Medicine; Won Sook Chung Foundation, Moorestown, New Jersey
3. Research Institute of Global Physiology and Treatment, New York
4. Private Practice, Perkasie, Pennsylvania
5. National Integrated Health Associates, Washington, DC
6. Adjunct Scholar Center for Clinical Epidemiology and Biostatistics, Perelman School of Medicine at the University of Pennsylvania, Philadelphia; Won Sook Chung Foundation, Moorestown, New Jersey