Sophie Poznanski (IMAGE) McMaster University Caption McMaster University researcher Sophie Poznanski is the lead author of a paper presenting a new form of lung cancer treatment using a novel combination of immunotherapies. Credit Georgia Kirkos, McMaster University Usage Restrictions None License Licensed content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.