It performs all types of clinical tests but also touts itself as a pioneer in gene-oriented tests for things such as HIV resistance and cervical cancer screening.

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The point is, there are many different types of clinical study, covering all aspects of medicine, so the scope of research in the NHS goes way beyond most people's perception.

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And increasingly, with national clinical frameworks for particular disease types there are standardised activities which occur which are guaranteeing the equitability of care across the country.

BBC

"The two different types have fairly dramatically different clinical behaviors, " said Matthew Kulke, director of the carcinoid and pancreatic neuroendocrine tumor program at the Harvard-affiliated Dana-Farber Cancer Institute in Boston.

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Clinical studies have shown a connection between certain types of interruptive sounds and memory.

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There are other types of analyses that fall between observational studies and the best clinical trials in their reliability.

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But the stock has traded at less than a third of its 52-week high since Genentech, building on a string of clinical successes, released data showing that its Lucentis had unprecedented efficacy against some types of AMD, perhaps even reversing the disease.

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Health officials have begun using the virus's clinical name, H1N1, to reflect that it's a combination of several different types of flu and to reduce confusion about whether eating pork can spread the virus, which it cannot.

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Now Genentech says the drug also extends the lives of patients with certain types of lung cancer for two months when combined with chemo, based on an 877-patient clinical trial.

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