Malekirad, Ali Akbar, et al. "Benefit of Lemon Verbena in healthy subjects; targeting diseases associated with oxidative stress." Asian Journal of Animal and Veterinary Advances 6.9 (2011): 953-957.
Caturla, Nuria, et al. "A randomized, double-blinded, placebo-controlled study of the effect of a combination of lemon verbena extract and fish oil omega-3 fatty acid on joint management." The Journal of Alternative and Complementary Medicine 17.11 (2011): 1051-1063.