Jacalyn Duffin, MD (Toronto 1974), FRCPC (1979), PhD (Sorbonne 1985), is a hematologist and historian who occupied the Hannah Chair of the History of Medicine at Queen’s University from 1988 to 2017. A former President of both the American Association for the History of Medicine and the Canadian Society for the History of Medicine, she is the author of eight books and many articles and holds several awards for teaching and research. She is a Fellow of the Royal Society of Cana-da and the Canadian Academy of Health Sciences. Her research focuses on the history of disease, technology, religion, and health policy. She runs an activist website for the drug shortage problem and blogs about this issue at CMAJ. https://cmajblogs.com/category/drug-shortages.