1 Division of Pediatric Endocrinology and Metabolism, Children's Medical Center, Osaka City General Hospital, 2-13-22, Miyakojima-Hondori, Miyakojima, Osaka 534-0021, Japan.
2 Department of Dermatology, Osaka City General Hospital, 2-13-22, Miyakojima-Hondori, Miyakojima, Osaka 534-0021, Japan.
3 Department of Dermatology, Hirosaki University Graduate School of Medicine, 5, Zaifu-cho, Hirosaki-city, Aomori 036-8562, Japan.