1. Cosmetic Dermatology and Clinical Research, Schweiger Dermatology Group, Clinical Professor of Dermatology Icahn School of Medicine at Mount Sinai New York New York USA
2. Radboud UMC Nijmegen Andriessen Consultants Malden The Netherlands
3. Department of Dermatology Northwestern University – Feinberg School of Medicine Chicago Illinois USA
4. Dermatologic, Laser & Cosmetic Surgery Oak Dermatology Naperville Illinois USA
5. Dermatologic Research Oak Dermatology Naperville Illinois USA
6. Founder of Gold Skin Care Center Nashville Tennessee USA
7. Vanderbilt University School of Medicine and Nursing Nashville Tennessee USA
8. Schweiger Dermatology Group New York New York USA
9. Medical and cosmetic dermatology North Bergen New Jersey USA