Effects of a fixed herbal drug combination (Ze 185) to an experimental acute stress setting in healthy men – An explorative randomized placebo-controlled double blind study. (September 2017) - Meier, Sibylle; Haschke, Manuel; Zahner, Catherine; Kruttschnitt, Esther; Nicolussi, Simon; Drewe, Jürgen; Liakoni, Evangelia; Hammann, Felix; Gaab, Jens