* Wesnes KA, Ward T, McGinty A, Petrini: The memory enhancing effects of a Ginkgo biloba/Panax ginseng combination in healthy middle-aged volunteers. Psychopharmacology (Berl), 152, 353-361, 2000 | * Wesnes KA, Ward T, McGinty A, Petrini: The memory enhancing effects of a Ginkgo biloba/Panax ginseng combination in healthy middle-aged volunteers. Psychopharmacology (Berl), 152, 353-361, 2000 |