President, Retina Hong Kong;
Vice Chairman, the Hong Kong Joint Council for People with Disabilities;
Member, Rehabilitation Service Committee, the Hong Kong Society for the Blind;
Member, Ethics Committee, Hong Kong Doctors’ Union;
Council Member, Rare Disease International;
Treasurer, Asia Pacific Alliance for Rare Disease Organizations.
Founder Chairman, Tuberous Sclerosis Complex Association of Hong Kong
Chairman, The Hong Kong HAE Patient Group
Founder Chairman, Green Grass Notes
Vice President, Retina Hong Kong
Senior Advisor(Policy and Governance), School of Biomedical Sciences, HKU
S Y and H Y Cheng Professor in Stem Cell Biology and Regenerative Medicine, HKU
Director(Education and Development of Research Integrity), School of Biomedical Sciences, HKU
Registered Nurse
Regional Scouter, Scout Association of Hong Kong, Hong Kong Island Region
Vice-chairman, Hong Kong Wilson's Disease Association
Vice-chairman, Hong Kong Mucopolysaccharidoses & Rare Genetic Diseases Mutual Aid Group
Founder, ALScare Christian Association
Founder, Hong Kong Health Care Alliance(Social Enterprise)
Advisor, Continuing Education Department of YWCA
Panel member, Christian Action Training Services Division Trade Advisory Committee
Clinical Associate Professor, Department of Paediatrics and Adolescent Medicine, LKS Faculty of Medicine, HKU
Chief Medical and Scientific Officer, Hong Kong Genome Institute
Senior Advisor(Policy and Governance), School of Biomedical Sciences, HKU
S Y and H Y Cheng Professor in Stem Cell Biology and Regenerative Medicine, HKU
Director(Education and Development of Research Integrity), School of Biomedical Sciences, HKU
Assistant Professor, JC School of Public Health and Primary Care Faculty of Medicine, Chinese University of Hong Kong
Assistant Professor, Department of Medicine, and Department of Pharmacology & Pharmacy, LKS Faculty of Medicine, HKU
Honorary Treasurer, Primary Immunodeficiency League
Chief Executive Officer, Unique (rare chromosome & gene disorder support group)
Trustee, Genetic Alliance UK
Member, Association of Genetic Nurses and Counsellors (AGNC) UK
Member, British Society for Genetic Medicine (BSGM), UK
Elected Member, Royal Society of Biology, UK
Member, Asia-Pacific Society of Human Genetics (APSHG)
PPV (Patient and Public Voice) representative on the NHS Genomics Clinical Reference Group (CRG)
PPV representative on the BSGM ethics and policy committee