1. Department of Dermatology, Ilsan Paik Hospital, Inje University College of Medicine, Goyang, Korea.
2. Department of Dermatology, Busan Paik Hospital, Inje University College of Medicine, Busan, Korea.
3. Department of Dermatology, Sanggye Paik Hospital, Inje University College of Medicine, Seoul, Korea.
4. Department of Dermatology, Haeundae Paik Hospital, Inje University College of Medicine, Busan, Korea.
5. Department of Dermatology, Seoul Paik Hospital, Inje University College of Medicine, Seoul, Korea.