For millions of people around the world being sick doesn't mean making a trip to the local pharmacy for medicines like Advil and Nyquil. Instead it means turning to the forest to provide a pharmacopeia of medicines to treat everything from tooth aches to chest pains. But while questions persist about whether such natural remedies are as effective as their pharmacological cousins, one Harvard researcher is examining the phenomenon from a unique perspective, and trying to understand the economic benefits people receive by relying on such traditional cures...

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