Professor Career

• Teiko university, Japan
• Yonsei University
• CHA University

Medical Experience

• Noguchi Thyroid Clinic, Japan
• Teikyo University, Japan
• Department of surgery, Gangnam Severance hospital
• General Surgery, CHA Ilsan medical center
• Head, Thyroid Cancer center, CHA Ilsan medical center, CHA University

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