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Sam Smith investigates a controversial new treatment for Multiple Sclerosis. And Nick Baker on the disease that means the felling of hundreds of thousands of the South West's trees.

29 minutes

Last on

Mon 7 Mar 201119:30

Credits

RoleContributor
PresenterSam Smith
Series ProducerDimitri Houtart
Series EditorSimon Willis
ReporterNick Baker

Broadcast

  • Mon 7 Mar 201119:30