Research psychologists at North Carolina State University in Raleigh recruited 103 volunteers, ages 60 to 82, to perform simple arithmetic and recall tests.

研究心理学家在北卡罗来纳州立大学罗利招募103志愿者，年龄60至82岁，对他们进行简单的算术和记忆力测试。

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The MHRA has sent out a letter to the NHS Trusts affected by the recall advising that follow up tests are unnecessary.

BBC: NEWS | Health | 'Stolen bone' hospitals revealed

The BBC has learnt that patients treated at the Royal London Hospital, Guys Hospital, and the Royal National Orthopaedic Hospital have not been told about the recall of bones or offered follow up tests.

BBC: NEWS | Health | 'Stolen bone' hospitals revealed

And last week the British unit of frozen foods giant Findus started to recall its beef lasagne on advice from its French supplier, Comigel, after tests showed concentrations of horsemeat.

BBC: Horsemeat scandal: Bute found in eight horse carcasses