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