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Norbert Hirschhorn: The man who helped save 50 million lives

3 August 2014 Last updated at 00:21 BST

Norbert Hirschhorn helped pioneer Oral Rehydration Therapy, a simple concoction of sugar, salts and water that has saved the lives of over 50 million people suffering from dehydration worldwide.

He spoke to Health Check's Lizzie Crouch about the discovery.

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