Treatment of the Common Cold with Unrefined Echinacea

Figure 4. Dotted lines represent the echinacea group; solid lines represent the placebo group. Error bars represent 95% CIs. Although 95% CIs indicate the uncertainty of the severity of symptoms, they should not be used to compare symptom severity on any particular day.
Figure 4. Dotted lines represent the echinacea group; solid lines represent the placebo group. Error bars represent 95% CIs. Although 95% CIs indicate the uncertainty of the severity of symptoms, they should not be used to compare symptom severity on any particular day. Mean severity of specific cold symptoms.

This Article

  1. Ann Intern Med December 17, 2002 vol. 137 no. 12 939-946
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