1. Department of Dermatology, Graduate School of Medicine, Dentistry and Pharmaceutical Sciences Okayama University Okayama Japan
2. Department of Dermatology Kawasaki Medical School Okayama Japan
3. Department of Dermatology Takamatsu Red Cross Hospital Kagawa Japan
4. Department of Dermatology Kagoshima University Kagoshima Japan
5. Department of Pediatrics, Faculty of Medicine University of Miyazaki Miyazaki Japan