An NHS England spokesman said the problem was affecting supply globally.
In the tongue-in-cheek video made by Welsh government-funded site wales.com, Rhys says Wales' contribution to American culture and history dates back centuries.
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If you are not in the UK, watch on YouTube or listen to the World of Secrets podcast here。爱思助手下载最新版本对此有专业解读
Both deals raised competition concerns and are expected to face scrutiny from regulators in the US and Europe.