1. Department of Dermatology; Asan Medical Center; College of Medicine; University of Ulsan; Seoul Korea
2. Department of Dermatology; Chung-Ang University College of Medicine; Seoul Korea
3. Department of Dermatology; St. Paul's Hospital; College of Medicine; Catholic University of Korea; Seoul Korea
4. Department of Plastic and Reconstructive Surgery; Asan Medical Center; College of Medicine; University of Ulsan; Seoul Korea
5. Clinical Research Team; Daewoong Pharmaceutical; Seoul Korea