1. Fellow in General Internal Medicine and Primary Care, Brigham and Women’s HospitalFellow, Primary Health Care, Ariadne Labs, Boston, Massachusetts, USA
2. Affiliate Physician, Ariadne Labs, Boston, Massachusetts, USA
3. Head of Covid-19 Response, Daegu Medical Association, Daegu, South Korea
4. Executive Director, Ariadne Labs, Boston, Massachusetts, USA
5. Chairman, Ariadne Labs, Boston, Massachusetts, USA