Fransen, H. P., Pelgrom, S. M., Stewart-Knox, B., de Kaste, D., & Verhagen, H. (2010). Assessment of health claims, content, and safety of herbal supplements containing Ginkgo biloba. CoAction Publishing.

Fransen, Heidi P., Sylvia M.G.J Pelgrom, Barbara Stewart-Knox, Dries de Kaste, και Hans Verhagen. Assessment of Health Claims, Content, and Safety of Herbal Supplements Containing Ginkgo Biloba. CoAction Publishing, 2010.

Fransen, Heidi P., et al. Assessment of Health Claims, Content, and Safety of Herbal Supplements Containing Ginkgo Biloba. CoAction Publishing, 2010.