Group Photo (IMAGE) City University of Hong Kong Caption A group photo of (from left to right) Professor Liu Chain Tsuan, Professor Kai Jijung and Dr. Jiao Zengbao. Credit City University of Hong Kong Usage Restrictions The image can only be used with appropriate caption and credit. 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.