He provides clinical services as an Honorary Consultant Neurosurgeon at Queen Mary Hospital, Hong Kong. His clinical and research interests include endoscopic skull base surgery, neurotrauma, molecular biology of brain tumours, neuroprotective therapy as well as medical education, and medical law and ethics. He has supervised 19 past or current post-graduate students, focusing on clinical and translational research in neuroscience. He has authored/co-authored 167 peer-reviewed journal articles, 11 book chapters, 2 monographs, 123 conference papers, 66 other publications, and delivered 115 invited lectures.