University Hospital said it was in a good position to study the affect of the drugs because it treated patients from different PCTs across the Midlands.

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The nearest dentist to Aberystwyth accepting patients is in the seaside town of Barmouth, but NHS Direct says because the surgery is in a different county, although only 20 miles away, patients from Aberystwyth may not be accepted.

BBC: NEWS | UK | In search of an NHS dentist

The news release also does not say how many different subsets of patients were analyzed, which is particularly important because the more subsets you analyze, the more you are likely to have a positive result merely by chance.

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The Phase II trial was crucial because Vertex has wanted to find a way to treat different subset of cystic fibrosis patients with various genetic mutations, in this instance, a mutation called F508del that is also the most common.

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Journal last week, 20-30% of doctors in two different surveys, in Connecticut and the Midwest, reported having to kick patients out of their practices because of vaccine refusal.

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He said that because there are many different types of schizophrenia, which are treated in many different ways, it is difficult to categorise patients.

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