Lichtenberger F, Rajendran K, Layton K, Lakshminarayan S, Krishnamurthy L, Deep DK. Assessment of KaraShieldTM properties in supporting the immune health of healthy subjects: a randomized, parallel, double-blind, placebo-controlled clinical study. Int J Basic Clin Pharmacol [Internet]. 2023 Nov. 8 [cited 2025 Oct. 23];13(1):1-12. Available from: https://www.ijbcp.com/index.php/ijbcp/article/view/5470