1. Unit Manager of Referral Center, Gyeongsang National University Changwon Hospital, Korea.
2. Head Nurse of Health Promotion Center, Gyeongsang National University Changwon Hospital, Korea.
3. Nursing Administrator, Department of Nursing, Gyeongsang National University Changwon Hospital, Korea.
4. Associate Professor, College of Medicine · Institute of Health Science, Gyeongsang National University, Gyeongsang National University Changwon Hospital, Department of Occupational and Environmental Medicine, Korea.