1. Cosmetic Laser Dermatology San Diego California USA
2. Apkoo‐Jung Oracle Dermatology Clinic Seoul South Korea
3. Private Practice Hong Kong Hong Kong
4. The Chinese University of Hong Kong School of Medicine Hong Kong Hong Kong
5. Hong Kong Association of Cosmetic Surgery (HKACS) Hong Kong Hong Kong
6. Division of Dermatology, Ramathibodi Hospital Mahidol University Bangkok Thailand
7. Division of Facial Plastic and Reconstructive Surgery, Department of Otolaryngology University of Illinois at Chicago Chicago Illinois USA