Dr. Hertzel Gerstein is a Professor of Medicine and Endocrinologist (video) McMaster University Share Print E-Mail Loading video... Caption Dr. Hertzel Gerstein talks about the REWIND trial. Credit Hamilton Health Sciences. Usage Restrictions None 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.