Silexan, an orally administered Lavandula oil preparation, is effective in the treatment of ʼsubsyndromalʼ anxiety disorder: a randomized, double-blind, placebo controlled trial - Kasper, S; Gastpar, M; Müller, W E; Volz, H P; Möller, H J; Dienel, A; Schläfke, S (Int Clin Psychopharmacol, 2010)