• MMed (Psychiatry)
• MBBS (Spore)

• Clinical Assistant Professor - Duke-NUS Medical School
• Clinical Lecturer - Yong Loo Lin School of Medicine, NUS
• Physician Faculty Member - National Healthcare Group (NHG) Residency
• Director - Geriatric Psychiatric Service, Psychological Medicine Department, CGH
• Assistant Director - Sleep Medicine, Surgery ＆ Science, CGH
• Member - Medical Ethics Committee, CGH
• National Transplant Ethics Panel, MOH
• Singapore Medical Council’s Complaints Panel
• Member - Tribunal for Maintenance of Parents, MSF
• Medical Specialist Panel of Work Injury Compensation Medical Board, MOM

• National Council of Social Service, Long Service Award - 2016
• MOH Long Service Award - 2015
• National Day Awards, Long Service Medal - 2014

• Late-life Depression: Current Issues and new Challenges, Ann Acad Med Singapore 2003; 32:764-70

• Psychogeriatric Services in Singapore, ASEAN Journal of Psychiatry, Vol 6, No.1 Dec 2003

• Validation and Comparison of Three Brief Depression Scales in an Elderly Chinese Population, Int. J of Geriatric Psychiatry 15, 824-830 (2000)

• Randomised, double-blind, placebo-controlled, parallel-group, 12-month trial of leuco-methylthioninium bis (bydromethanesulfonate) in subjects with mild to moderate alzhiemer’s disease- principal investigator (Dept of Psy Med, CGH) from Dec 2013 to Jun 2015

• An exploratory placebo-controlled, dose-ranging study of the effects of methythioninium chloride 30 mg tid, 60 mg tid and 100 mg tid in patients with mild to moderate dementia of alzheimer type, co-investigator, 2007 to 2009

• National community mental health prevalence study of depression, anxiety and dementia in the elderly, co-investigator, 2003 to 2004