Petersen - Planarian Flatworm (IMAGE) Northwestern University Caption Results from a Northwestern University study of the planarian flatworm could have ramifications for novel tissue engineering methods. Credit Northwestern University Usage Restrictions Credit must be given 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.