Small intestine submucosa from sheep (IMAGE) City University of Hong Kong Caption Zhang Zhuomin, a member of Dr Yang Zhengbao’s research team, demonstrates the raw material of small intestine submucosa from sheep. Credit City University of Hong Kong Usage Restrictions Image must be used with appropriate caption and credit. License Original 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.