1. Department of Dermatology; Drug Hypersensitivity Clinical and Research Center, Chang Gung Memorial Hospitals; Taipei, Linkou, and Keelung Taiwan
2. College of Medicine; Chang Gung University; Taoyuan Taiwan
3. Graduate Institute of Clinical Medical Sciences; College of Medicine, Chang Gung University; Taoyuan Taiwan
4. Department of Pathology; Chang Gung Memorial Hospital; Taipei Taiwan