Ali Ashkar (IMAGE) McMaster University Caption McMaster researcher Ali Ashkar, whose team has developed a new form of treatment for lung cancer, using a 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.