Bibliography (15):

1. Silexan, an orally administered Lavandula oil preparation, is effective in the treatment of ‘subsyndromal’ anxiety disorder: a randomized, double-blind, placebo controlled trial

2. Efficacy of orally administered Silexan in patients with anxiety-related restlessness and disturbed sleep—A randomized, placebo-controlled trial

3. Efficacy of Silexan in mixed anxiety-depression—A randomized, placebo-controlled trial

4. https://de.wikipedia.org/wiki/Dr._Willmar_Schwabe

5. Wikipedia Bibliography:

   1. Lavender oil

   2. Meta-analysis

   3. Placebo

   4. Randomized controlled trial

   5. Hamilton Anxiety Rating Scale

   6. https://en.wikipedia.org/wiki/Pittsburgh_Sleep_Quality_Index  :

      https://en.wikipedia.org/wiki/Pittsburgh_Sleep_Quality_Index

   7. https://en.wikipedia.org/wiki/Zung_Self-Rating_Anxiety_Scale  :

      https://en.wikipedia.org/wiki/Zung_Self-Rating_Anxiety_Scale

   8. https://en.wikipedia.org/wiki/Clinical_global_impression  :

      https://en.wikipedia.org/wiki/Clinical_global_impression

   9. https://en.wikipedia.org/wiki/SF-36  :

      https://en.wikipedia.org/wiki/SF-36

   10. Confidence interval

   11. Statistical-significance