Prime Minister David Cameron has paid tribute to former Tory minister Lord Roberts of Conwy, who has died aged 83.
I'm sad to hear a great Conservative, Lord Roberts of Conwy, has died. He did so much for Wales, including piloting the Welsh Language Act.
More top news
Mr Kim has made two recent visits to China.
The study looked at the development of 422 children over the course of eight years.
The president said they will come into force if China refuses to change its practices.