- Graduated from the medical school of the National University of Singapore in 1974 - Post graduate degree in 1978 and Post doctoral degree in Doctor of Medicine in 1994 - Special interests in Contact and Occupational Dermatitis, Dermatological and Laser Surgery and application of IT in medicine - Director of the National Skin Centre, Singapore 1990-2004 -  Chairman of Taskforce for Aesthetic Medicine Workgroup of the Ministry of Health in 2007 - Past president of the Society of Laser Medicine and Surgery of Singapore - Past president of the Environmental and Occupational Dermatology Society of Singapore - Past member of editorial board of the Contact Dermatitis Journal, the Archives of Dermatology and Journal of the American Academy of Dermatology - Committee Member of the Singapore Medical Council Aesthetic Practice Oversight Committee - Member of the International Contact Dermatitis Research Group - Senior Consultant Dermatologist at the National Skin Centre - Clinical Professor of the Faculty of Medicine of the National University of Singapore - Adjunct Professor of the LKC School of Medicine