Alba DiCenso holds the CHSRF/CIHR Chair in Advanced Practice Nursing at McMaster University where she is Professor of Nursing and Clinical Epidemiology & Biostatistics, and the Director of the CHSRF/CIHR Ontario Training Centre in Health Services and Policy Research. An exemplary educator, researcher and author, she is internationally known for her pioneering work in evidence-based nursing and is the expert on advanced practice nursing including the roles and effectiveness of nurse practitioners and clinical nurse specialists in Canada. She has influenced policy at the provincial, national and international levels on the development of nurse practitioners and their place in health care systems.