Catherine Hudon is Professor at the Family Medicine and Emergency Medicine Department of Université de Sherbrooke and member of the College of the Royal Society of Canada. She conducts an innovative research program mobilizing many national and international partners to improve care integration, equity in health and health of people with complex care needs facing interacting challenges among physical, mental, and social health. Adopting a participatory approach, she uses mixed methods to develop, implement, and evaluate innovations to better answer the needs of this population and improve healthcare systems efficiency.