1. Department of Dermatology, Japanese Red Cross Saitama Hospital, Saitama, Japan
2. Department of Dermatology, Tokyo Women’s Medical University Yachiyo Medical Center, Yachiyo, Chiba, Japan
3. Department of Pediatrics, Japanese Red Cross Saitama Hospital, Saitama, Japan
4. Department of Pediatrics, Gradulate School of Medicin, Chiba University