DOI: 10.1055/s-00000011

DMW - Deutsche Medizinische Wochenschrift

References

Ross SM.
Echinacea purpurea: A Proprietary Extract of Echinacea purpurea Is Shown to be Safe and Effective in the Prevention of the Common Cold.

Holist Nurs Pract 2016;
30: 54-57

Ross SM.
Echinacea purpurea: A Proprietary Extract of Echinacea purpurea Is Shown to be Safe and Effective in the Prevention of the Common Cold.

Holist Nurs Pract 2016;
30: 54-57

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