title: Marketing studies and scientific research must be distinct.
authors.forename: E
authors.initials: E
authors.lastname: Ernst
mesh_terms: D000529:Complementary Therapies; D020441:Ginkgo biloba; D006801:Humans; D010946:Plants, Medicinal; D016032:Randomized Controlled Trials as Topic; D012107:Research Design; D014012:Tinnitus / Q000628:therapy*