Cancer registry to shed light on 'epidemic'

More details about disease will help experts target information, treatment

China has set up the world's largest cancer registry through its 308 leading hospitals, covering more than 300 million people, said registry director Chen Wanqing.

At least 3 million people develop cancer each year in China, and the registry is expected to expand to include 40 percent of the nation's population of 1.36 billion by 2020.