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No cure for the common cold
  1. K Hattotuwa
  1. Broomfield Hospital, Chelmsford, Essex;

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Previous studies of Echinacea have reported success varying from 10% to 50% in the treatment of colds. A few randomised trials have reported only a small effect in preventing colds.

In this randomised, double blind, placebo controlled study the authors report on the effect of 10 days …

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