Bachelor of Dental Surgery, University Singapore, 1980. Myelodysplastic Syndromes, National University Singapore, 1983. Master in Public Health, University of California at Los Angeles, 1985.
Master of Science, Baylor University, 1994. Fellow, Academy Medicine, Singapore, 1988. Fellow, International College Dentists, United States, 1990.
Dental officer, Ministry of Health, Singapore, 1980-1981; senior tutor, National U. Singapore, 1981-1983; lecturer, National U. Singapore, 1983-1987; senior lecturer, National U. Singapore, 1987-1992. Part-time lecturer National U. Singapore, since 1994. Consultant National U. Hospital, Singapore, 1988-1992, L.C. Lien PTE, Ltd., Singapore, since 1992, Braces Ctr PTE, Ltd., Singapore, since 1994.
Board of directors Woodlands Home for the Aged, Singapore, since 1986. Grassroots leader People's Action Party, Singapore, since 1986. Captain Singapore ArmedForces, since 1980.
Member Academy Medicine (honorary general secretary since 1994).
Married Choo Li Lien, May 29, 1986. Children: Shean-Han, Yu-Jie.