Michael Philipp, Klaus Linde, Ralf Kohnen, Karl-O Hiller, Michael Berner
Philipp M, Linde K, Kohnen R, Hiller K, Berner M.
Hypericum extract versus imipramine or placebo in patients with moderate depression: randomised multicentre study of treatment for eight weeksCommentary: Has hypericum found its place in antidepressant treatment?
BMJ 1999; 319 :1534
doi:10.1136/bmj.319.7224.1534