1. Department of Plastic Surgery, Wound Repair and Regeneration, School of Medicine, Fukuoka University, Fukuoka, Japan.
2. Department of Plastic and Reconstructive Surgery, National Hospital Organization, Nagasaki Medical Center, Nagasaki, Japan.
3. Department of Epidemiology, Infectious Disease Control and Prevention, Graduate School of Biomedical & Health Science, Hiroshima University, Hiroshima, Japan.
4. Shabondama Soap Co., Ltd., Fukuoka, Japan.