1. Division of Family Medicine; Department of Community Medicine; Taipei City Hospital; Taipei Taiwan
2. Institute of Public Health and Community Medicine Research Center; National Yang-Ming University; Taipei Taiwan
3. Division of Endocrinology and Metabolism; Department of Internal Medicine; Taipei City Hospital; Taipei Taiwan
4. Department of Emergency Medicine; Kaohsiung Veterans General Hospital; Kaohsiung Taiwan
5. Division of Nephrology; Kaiser Permanente Baldwin Park Medical Center; Baldwin Park California
6. Department of Education and Research; Taipei City Hospital; Taipei Taiwan