Mohamad Allaf, MD (IMAGE) ECOG-ACRIN Cancer Research Group Caption Dr. Mohamad Allaf is a member of the ECOG-ACRIN Cancer Research Group and Urologist-in-Chief at The Johns Hopkins Hospital in Baltimore, Maryland Credit Johns Hopkins Medicine Usage Restrictions No restrictions. License Public Domain 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.