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Topping the Charts

Are No.1 records always the best songs? Simon Barnet from the Ä¢¹½¶ÌÊÓÆµ Pop Unit explains how the charts work.

Also on the programme, how maggots are used in medicine.

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30 minutes

Ä¢¹½¶ÌÊÓÆµ World Service Archive

This programme was restored as part of the World Service archive project