1. Center of Excellence in Burn and Wound Care, Chulalongkorn University, Bangkok 10330, Thailand
2. Department of Clinical Tropical Medicine, Faculty of Tropical Medicine, Mahidol University, Bangkok 10400, Thailand
3. College of Public Health Sciences, Chulalongkorn University, Bangkok 10330, Thailand
4. Department of Oral Biology, Faculty of Dentistry, Mahidol University, Bangkok 10400, Thailand
5. Department of Anatomy, Faculty of Medicine, Chulalongkorn University, Bangkok 10330, Thailand