1. Mills, S., Bone, K., Principles and Practice of Phytotherapy: Modern Herbal Medicine. Churchill Livingstone, Edinburgh 2000, p. 404.
2. DeFeudis, F. V., Ginkgo biloba Extract (EGb 761): Pharmacological Activities and Clinical Applications. Elsevier, Amsterdam 1991, pp. 1–8.
3. Bensky, D., Clavey, S., Stoger, E., Chinese Herbal Medicine: Materia Medica, 3rd Edn. Eastland Press, Seattle 2004, p. 891.
4. Mills, S., Bone, K., Principles and Practice of Phytotherapy: Modern Herbal Medicine. Churchill Livingstone, Edinburgh 2000, pp. 408–409.
5. Spontaneous bilateral subdural hematomas associated with chronic Ginkgo biloba ingestion.;Rowin;Neurology,1996