Xiaolin is a medical doctor, public health specialists, professor and the Dalla Lana Chair in Global Health Policy in the University of Toronto. He became a Fellow of the Faculty of Public Health of UK in 2012. Xiaolin has conducted research using implementation science frameworks to change clinical practice and make impacts at the policy level in areas of antimicrobial resistance, tuberculosis control and diabetes/ hypertension care. He also conducted comparative analysis for primary care reforms. He has published over 100 peer reviewed research papers, and led over $7m research funding as the principal investigator from MRC, DFID, CIHR, StopTB Partnership and HK RGC. He serves as board member and has served as the Secretary General and Vice President of the International Union of Lung Disease.