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| Trial name or title | PEP trial |
| Methods | Randomised trial |
| Participants | Out‐patients with common cold |
| Interventions | Placebo Standard and enhanced patient‐provider interaction Echinacea |
| Outcomes | Area under time severity curve based on the Wisconsin Upper Respiratory Symptom Survey |
| Starting date | NS |
| Contact information | bruce.barret@fammed.wisc.edu |
| Notes |
