From the Rugby Club to the School of Dentistry, just about everyone at OSU is either wearing or has seen the Connect brand.

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Why it is so tough has always lacked a good explanation but now researchers at the University of Southern California's School of Dentistry are closing in on the secret.

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It was carried out by the Cardiff University School of Dentistry and Public Health Wales and was published by the Welsh Oral Health Information Unit which is run from the university.

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Professor Ian MacKenzie, a researcher in stem cell biology from the Queen Mary School of Medicine and Dentistry in London, said that it was still likely that stem cells played a significant role in the development of cancer.

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Next year, Professor John Oxford, an expert in virology from Queen Mary's School of Medicine and Dentistry, in London, will lock volunteers in a hotel for a week, deliberately infect some with the flu virus, and wait to see what happens.

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Professor Stuart Morganstein, dean of dentistry, said the school will need volunteers to receive treatment from final year students and Leicester was the perfect size and demographic to draw potential patients.

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Dr Berkman, a medical student at the University of Medicine and Dentistry of New Jersey, conducted the research while studying for his MA at the John Hopkins Bloomberg School of Public Health.

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