Doctor of Philosophy, ChunBuk National University, ChunJu, Republic of Korea, 1998.
Director hypertension clinic Baptist Hospital, Pusan, Republic of Korea, 1993—1994. Professor Keimyung University Medical School, Daegu, Republic of Korea, since 1994. Executive director Daegu Association on Smoking and Health, since 1995.
Captain Korean Air Force, 1990-1993.
Director education committee Anti-smoking Supervising Committee, Seoul, 2005—2006. Executive director Human Life International, Korea, Daegu, 1997—2007. Member of Korean Academy Family Medicine (associate).
Married EunA Han; children: June, Jane.