1. EverKeen Medical Centre, Hong Kong
2. The Skin Oracle, Hong Kong
3. Asia-Pacific Aesthetic Academy, Hong Kong
4. Leciel Medical Centre, Hong Kong
5. Division in Anatomy and Developmental Biology, Department of Oral Biology, Human Identification Research Institute, BK21 FOUR Project, Yonsei University College of Dentistry, 50-1 Yonsei-ro, Seodaemun-gu, Seoul 03722, Republic of Korea
6. Maylin Clinic (Apgujeong), Seoul, Republic of Korea