1 Department of Dermatology (Gao, Yen, Chen) and Drug Hypersensitivity Clinical and Research Center (Chen), Chang Gung Memorial Hospital, Linkou, Taiwan; College of Medicine (Gao, Yen, Chen), Chang Gung University, Taoyuan, Taiwan; Graduate Institute of Immunology (Chen), College of Medicine, National Taiwan University, Taipei, Taiwan.
2 Department of Dermatology (Gao, Yen, Chen) and Drug Hypersensitivity Clinical and Research Center (Chen), Chang Gung Memorial Hospital, Linkou, Taiwan; College of Medicine (Gao, Yen, Chen), Chang Gung University, Taoyuan, Taiwan; Graduate Institute of Immunology (Chen), College of Medicine, National Taiwan University, Taipei, Taiwan greatedisonchen@gmail.com.