Dr McWilliams is a Consultant Respiratory Physician at Fiona Stanley Hospital and Clinical Associate Professor at the University of Western Australia in Perth, Australia. She also holds the role of Clinical Lead of the Thoracic Tumour Collaborative of Western Australia. She has been an investigator on the PanCanadian Early Detection of Lung Cancer Study and is currently an investigator on the International LungScreen Trial. The focus of her clinical and research work over the last 20 years has been the early detection, diagnosis, staging and treatment of lung cancer.

Dr. Tammemägi is Professor Emeritus (Epidemiology) in the Department of Health Sciences at Brock University and is Provincial Scientific Lead for Ontario Health – Cancer Care Ontario’s Lung Screening Program. He has been a co-investigator and remains an active analyst in the U.S. Prostate, Lung, Colorectal and Ovarian Cancer Screening Trial (PLCO), the U.S. National Lung Screening Trial (NLST), the Pan-Canadian Early Detection of Lung Cancer Study, and the International Lung Screening Trial. He is an active associate member of the U.S. National Cancer Institute sponsored Cancer Intervention and Surveillance Modeling Network (CISNET) Lung Group. Dr. Tammemägi has a strong interest in cancer epidemiology with special interests in lung cancer screening and cancer risk prediction modelling. He has developed several widely validated and adopted lung cancer risk prediction models. Tammemägi’s PLCOm2012 lung cancer risk prediction model has been validated in over 20 studies in more than 7 countries and is now being implement for selection of individuals for lung cancer screening in several jurisdictions (Tammemagi MC, et al. Selection criteria for lung-cancer screening. The New England journal of medicine. 2013;368(8):728-36.). Tammemägi ’s PanCan (syn. Brock model) Nodule Malignancy Probability Model has been extensively validated and accepted into clinical practice and has been recommended for selected use by the American College of Radiology’s LungRADS system and by the British Thoracic Society Guidelines for the Investigation and Management of Pulmonary Nodules (McWilliams A, Tammemagi MC, et al. Probability of cancer in pulmonary nodules detected on first screening CT. The New England journal of medicine. 2013;369(10):910-9.). In addition, Dr. Tammemägi is involved in several studies of lung cancer screening disparities and finding more effective ways to screen Blacks in the U.S. and Indigenous peoples in multiple countries around the world.