Ali Ashkar and Sophie Poznanski (IMAGE) McMaster University Caption McMaster researchers Ali Ashkar and Sophie Poznanski have developed a promising new form of treatment for lung cancer using a combination of two 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.