Research team (IMAGE) The University of Hong Kong Caption Dr Walter Yu-Hang Lam (left), the study’s leading HKU researcher and co-investigator Dr Reinhard Chun-Wang Chau 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.