But it keeps these disassociated files for up to 18 more months for testing and product improvement purposes.

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The HPA said the figures showed there was "room for improvement" in testing people in at-risk groups.

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Dr Robertson, a GP in Edinburgh, is calling for an improvement in treatment services and testing uptake.

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It is very different to TF107 (last year's model) and we have a lot of potential to continue the improvement we have seen in testing.

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Among those also indicted were four of Hall's executive administrators, six principals, two assistant principals, six testing coordinators, 14 teachers, a school improvement specialist and a school secretary.

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