Thomas Hawke and Irena Rebalka, McMaster University (image) McMaster University Share Print E-Mail Caption Thomas Hawke, senior author of the study and a professor in pathology and molecular medicine, and Irena Rebalka, first author of the study and a research associate, at McMaster University. Credit McMaster University Usage Restrictions For use when reporting on this research. Share Print E-Mail 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.