Dr Lui’s research interests include diabetic bone disease, and endocrine complications of cancer treatments and infections. Supported by the Hong Kong Society of Endocrinology, Metabolism and Reproduction and the Training and Research Assistance Scheme of the Queen Mary Hospital Charitable Trust, he studied the role of biomarkers in the bone health in type 2 diabetes. Later he went on to study the epidemiological aspect of fractures in diabetes using a territory-wide electronic health database. Amidst the COVID-19 pandemic, he has established a cohort of COVID-19 patients for the ongoing evaluation of endocrine dysfunction associated with COVID-19.