Effect of vitamin B12 injection on vocal performance of professional singers

What The Study Did: Researchers in this randomized clinical trial looked at whether a vitamin B12 injection improved mild singing-related symptoms such as reduced stamina and vocal fatigue among professional singers.

Authors: Michael M. Johns III, M.D., of the University of Southern California, Los Angeles, is the corresponding author.

To access the embargoed study: Visit our For The Media website at this link https://media.jamanetwork.com/

(doi:10.1001/jamaoto.2020.4026)

Editor’s Note: Please see the article for additional information, including other authors, author contributions and affiliations, conflict of interest and financial disclosures, and funding and support.

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Media advisory: The full study is linked to this news release.

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