1. Department of Dermatology; National Taiwan University Hospital; Taipei Taiwan
2. Department of Family Medicine; National Taiwan University Hospital; Taipei Taiwan
3. Department of Dermatology; Kaohsiung Medical University; Kaohsiung Taiwan
4. Kaohsiung Municipal Ta-Tung Hospital; Kaohsiung Medical University; Kaohsiung Taiwan
5. Department of Dermatology; National Cheng Kung University Hospital; College of Medicine; National Cheng Kung University; Tainan Taiwan
6. Department of Dermatology; Buddist Tzu Chi General Hospital; Tzu Chi University School of Medicine; Hualien Taiwan
7. Department of Dermatology; Chung Shan Medical University Hospital; Taichung Taiwan
8. Department of Dermatology; Changhua Christian Hospital; Changhua Taiwan
9. Merck & Co.; West Point NY USA
10. JSS Medical Research; St-Laurent QC Canada
11. McGill University; Montreal QC Canada
12. Temple University; Philadelphia PA USA