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Investigating the effect of echinacea extraction syrup on the outcomes of lower respiratory infections in patients with COVID-19: a randomized clinical trial study

Crossref DOI link: https://doi.org/10.1186/s12985-024-02586-6

Published Online: 2024-12-19

Update policy: https://doi.org/10.1007/springer_crossmark_policy

Authors

Kheirandish, Elham

Mahdizadeh, Mehrsadat https://orcid.org/0000-0003-3792-4808
Mahdizadeh, Mousa https://orcid.org/0000-0002-1081-0731
Rezaeitalab, Fariba

Yousefi, Mahdi

Shojaee, Seyedeh Sara Rezazadeh https://orcid.org/0000-0002-6736-4306
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Text and Data Mining valid from 2024-12-19

Version of Record valid from 2024-12-19
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Article History

Received: 6 April 2024

Accepted: 23 November 2024

First Online: 19 December 2024

Declarations

:

: The protocol has been registered with IRCT code IRCT20130522013423N2 and has been approved by the Human Research Ethics Committee of Mashhad University of Medical Sciences under the code IR.MUMS.REC.1401.013. In this randomized controlled trial, the principles stated in the Declaration of Helsinki were followed. All patients provided written informed consent and were informed about the purpose and possible outcomes of the study. The participants were also informed that their information would be kept confidential and that they would have the right to withdraw freely from the study.

: Not applicable.

: The authors declare no competing interests.

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