In his youth, Du was a student of music and drawing, and in 1986 went on to study and teach painting at the Southwest Art School in Sichuan, where he remains to this day.

CENTERFORSECURITYPOLICY: The "Right deviationist wind of reversing verdicts"

In this new study, researchers looked at all 55, 000 school children in a large metropolitan community of Seoul, which they say is representative not only of South Korea, but also many other developed nations.

CNN: South Korean study may lead to higher autism estimates

This was one of the toothpastes which performed well in the study by Bristol Dental School.

BBC: Whitening toothpastes 'don't work'

According to Professor Hume, preliminary results from another study - this time looking at the IQ of school children in Dundee - appeared to back up those findings.

BBC: Mothers-to-be urged to take extra iodine

In this study, carried out in 2002, scientists from the UK's University of Edinburgh and Mount Sinai School of Medicine in New York, the US, examined 38 women who were pregnant while at or near the World Trade Center when it was attacked.

BBC: NEWS | Health | Babies inherit 9/11 mums' stress