Society, Research, Training, Awards
- President. The Korean Society for Head & Neck Oncology
- President, Korean Association of Thyroid and Endocrine Surgeons
- President, Asian Association of Endocrine Surgeons
- Korean Top 100 skilled doctors, Thyroid cancer, Forbes Korea, 2009
- The best doctor, Thyroid diseases, Dong A daily news, 2004
- The best doctor, Thyroid diseases, Dong A daily news, 2000