||Head, Dept of Radiation Oncology.
Chairman, Specialist Training Committee (Radiation Oncology), 2006, member 1999-06.
Chairman, Chapter of Radiation Oncology, College of Radiologists Singapore 2005-present.
College of Radiology Singapore, Council member 2005-present.
NCC Institutional Review Board, Member, 2002-date.
National Healthcare Group Cancer Programme Executive Committee, Member, 2000-01.
Singhealth Oncology Health Management Programme (HMP), Chairman, 2004-date.
Singhealth Breast Cancer Workgroup, Chairman, 2003-date.