Yuen and Ho (IMAGE) The University of Hong Kong Caption Professor Yuen Kwok-yung, Professor David Ho and Dean of Medicine Professor Lau Chak-sing Credit The University of Hong Kong Usage Restrictions N/A 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.