1. Division in Anatomy and Developmental Biology, Department of Oral Biology Human Identification Research Institute, BK21 FOUR Project, Yonsei University College of Dentistry Seoul South Korea
2. Pharmaceutical Industry Department, Graduate School Chung‐Ang University Seoul South Korea
3. CELV Dermatology Clinic Jakarta Indonesia
4. Medical Director of Haute Age Medicine Clinic Taipei Taiwan
5. iSKY Center Bangkok Thailand
6. Rejuva Clinic Surabaya Indonesia
7. Melania Clinic Surabaya Indonesia
8. Maylin Clinic (Apgujeong) Seoul South Korea