title: Introduction.
authors.forename: Andrew
authors.initials: A
authors.lastname: Nicolaides
authors.forename: Russell D
authors.initials: RD
authors.lastname: Hull
authors.forename: Jawed
authors.initials: J
authors.lastname: Fareed
mesh_terms: D006801:Humans; D017410:Practice Guidelines as Topic; D016896:Treatment Outcome; D054556:Venous Thromboembolism / Q000517:prevention & control* / Q000628:therapy*