Professor at Department of Paediatrics of The Chinese University of Hong Kong
Honorary consultant at Prince of Wales Hospital and Hong Kong Children’s Hospital
Chief of Service of Department of Paediatrics, Prince of Wales Hospital from (2004-2014)
Immediate past Continental President of Asia of International Society of Pediatric Oncology
Supported the formation of multicenter clinical trial study groups as vice-chairman in China Children Leukemia Group & South China Children Cancer Group and the Chinese Children Cancer Group
Published over 340 peer-reviewed papers