An Evidence-Based Systematic Review of Elderberry and Elderflower ( Sambucus nigra ) by the Natural Standard Research Collaboration.

Journal of Dietary Supplements, 2014
- This is an extensive review of many aspects of elderberry treatment. It is written mostly in bullet point style so summarizing the entire paper (which is quite long) is not productive.
- However, there are some good points made about potential toxicity and possible drug interactions.