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Health
Last Updated: Sunday, 14 May 2006, 19:42 GMT 20:42 UK
In the lab at Huntingdon
Anti-vivisectionists have criticised Tony Blair's pledge to sign an online petition which backs animal testing.

Scientists are devising a way to monitor the progression of osteoarthritis - by listening to a patient's knee.
Scientists say they have evidence pinpointing what it is in grapefruit that can interact dangerously with some drugs.
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