Dr. Char Leung, PhD, is Honorary Fellow of Deakin University, Australia, as well as researcher of the Department of Medicine, Queen Mary Hospital, the University of Hong Kong. He has published multiple papers in a variety of peer-reviewed journals in pediatrics, virology, immunology, and public health, has served as a reviewer of more than 30 medical journals as well as guest editor. He has developed technologies for capsule endoscopy and cholangioscopy.