D. P. Sadhupati, R. Lakshmisudha, K. N. K. Chakravarthy, and P. S. Naidana, “A standardized combination of Terminalia chebula and Withania somnifera extracts enhances immune function in adults: a pilot randomized, double-blind, placebo-controlled clinical study”, fnr, vol. 68, May 2024.