Professor, Seoul National University College of Medicine, Seoul, Republic of Korea

　　Member of The Korean Society of Pathologists

　　Member of United States and Canadian Academy of Pathology

　　Member of American Association for Cancer Research

　　Member of Korean Breast Cancer Society

　　Editorial board of Journal of Pathology and Translational Medicine

　　Academician of Korean Society for Cytopathology

　　Academician of Korean Thyroid Association