Isabel Behrendt, Inga Schneider, Jan Philipp Schuchardt, Norman Bitterlich, Andreas Hahn. Effect of an herbal extract of Sideritis scardica and B-vitamins on cognitive performance under stress: a pilot study. ijp [Internet]. 2016 Mar. 31 [cited 2025 May 5];8(1):95-103. Available from: https://www.ijp.arjournals.org/index.php/ijp/article/view/450