Cat lurking
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September 19, 2011
Dallas Campbell investigates the causes of tooth decay and gum disease, and Dr Yan Wong explains the issues that can arise when foods are re-frozen. Jem Stansfield looks at new research that suggests electric lights can affect people's sleep. With Liz Bonnin
September 19, 2011
Dallas Campbell investigates the causes of tooth decay and gum disease, and Dr Yan Wong explains the issues that can arise when foods are re-frozen. Jem Stansfield looks at new research that suggests electric lights can affect people's sleep. With Liz Bonnin

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