Superiority of Newly Developed Over Basic Echinacea Formulations for the Treatment of Respiratory Tract Infections
Condition: Respiratory Tract Infections Intervention: Drug: Echinacea purpurea alcoholic extract Sponsors: Bioforce AG; Cantonal Hospital of St. Gallen; Labormedizinisches Zentrum Dr. Risch Recruiting
Source: ClinicalTrials.gov - Category: Research Source Type: clinical trials