1. EGb. EGb 761: ginkgo biloba extract, Ginkor. Drugs R. D. 4, 188–193 (2003).
2. Van Beek, T. A. & Montoro, P. Chemical analysis and quality control of Ginkgo biloba leaves, extracts and phytopharmaceuticals. J. Chromatogr. A 1216, 2002–2032 (2009).
3. Lindstrom, A., Ooyen, C., Lynch, M. E. & Bluementhal, M. Herb supplement sales increase 5.5% in 2012: Herbal supplement sales rise for 9th consecutive year; turmeric sales jump 40% in natural channel. HerbalGram 99, 60–65 (2013).
4. NBJ. Supplement business report (ed. Nutritional Business Journal ) (Penton Media Inc, 2013).
5. NTP. Toxicology and carcinogenesis studies of Ginkgo biloba extract (CAS No. 90045-36-6) in F344/N rats and B6C3F1/N mice (Gavage studies). Natl. Toxicol. Program Tech. Rep. Ser. 578, 1–183 (2013).