1. Department of Dermatology, Soonchunhyang University Bucheon Hospital, Soonchunhyang University College of Medicine, 170 Jomaru-ro, Bucheon 14584
2. Department of Epidemic Intelligence Service, Incheon Communicable Diseases Center, Incheon
3. Department of Dermatology, Soonchunhyang University Cheonan Hospital, Soonchunhyang University College of Medicine, Cheonan
4. Department of Dermatology, Hallym University Dongtan Sacred Heart Hospital, Hallym University College of Medicine, Hwaseong
5. Department of Preventive Medicine, Gachon University of College of Medicine, 38-13, Dokjeom-ro 3beon-gil, Namdong-gu, Incheon 21565