Hsiu-Hui Chiu1, Chieh-Shan Wu2, Cheng-Che E Lan3. 1. Department of Dermatology, Pingtung Christian Hospital, Pingtung, Taiwan. 2. Department of Dermatology, Kaohsiung Veterans General Hospital, Kaohsiung, Taiwan; Department of Dermatology, Faculty of Medicine, College of Medicine, Kaohsiung Medical University, Kaohsiung, Taiwan. 3. Department of Dermatology, Kaohsiung Medical University Hospital, Kaohsiung, Taiwan; Department of Dermatology, Faculty of Medicine, College of Medicine, Kaohsiung Medical University, Kaohsiung, Taiwan.