1. Department of Preventive Medicine College of Medicine Korea University Seoul Korea
2. Medical Research Institute College of Medicine Ewha Womans University Seoul Korea
3. Health and Wellness College Sungshin Women's University Seoul Korea
4. Department of Public Health Korea University Seoul Korea
5. Department of Obstetrics and Gynaecology Seoul National University Hospital Seoul Korea
6. Department of Health Informatics and Management College of Medicine Chungbuk National University Cheongju Korea