TY  - RPRT
TI  - Echinacea for preventing and treating the common cold.
AU  - D Melchart
AU  - K Linde
AU  - P Fischer
AU  - J Kaesmayr
PY  - 2000
DO  - 10.1002/14651858.cd000530
UR  - https://pubmed.ncbi.nlm.nih.gov/10796553/
ID  - 10796553
ER  -