title: Evidence in complementary and alternative therapies: lessons from clinical trials of homeopathy in headache.
authors.forename: T
authors.initials: T
authors.lastname: Whitmarsh
mesh_terms: D002986:Clinical Trials as Topic; D000529:Complementary Therapies; D006261:Headache / Q000628:therapy*; D006705:Homeopathy; D006801:Humans