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    Trolleys scientifically proven to be more beneficial than backpacks for the back of the children

    March 16, 2017

March 16, 2017

Trolleys scientifically proven to be more beneficial than backpacks for the back of the children

Researchers at the University of Granada warn that 23 percent of the girls carry in their backpack or trolley a load over 20 percent of their body weight, well above what is…

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