l-Arginine and COVID-19: An Update.

Nutrients · 2021 · PMC8619186 · PMID 34836206

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extremely significantno p-value reported

Conclusions and Perspectives The functional contribution of l -Arginine in many biological processes is extremely significant, especially in the control of endothelial and immune activities.

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Quoted from the open-access full text in Europe PMC under the licence the publisher applied. The sentence is reproduced exactly as published; the emphasis is ours.