Hyo Jin Park1, Kyung Ho Lee1, Chul Jong Park2. 1. Department of Dermatology, Bucheon St. Mary's Hospital, College of Medicine, The Catholic University of Korea, Bucheon, Korea. 2. Department of Dermatology, Bucheon St. Mary's Hospital, College of Medicine, The Catholic University of Korea, Bucheon, Korea. cjpark777smp@gmail.com.