title: Preface.
authors: Department of Rheumatology, VU University medical centre, 3A 64, Postbox 7057, 1007 MB Amsterdam, the Netherlands.
authors: Willem F
authors: WF
authors: Lems
authors: Kenneth G
authors: KG
authors: Saag
mesh_terms: D006801:Humans; D010024:Osteoporosis / Q000628:therapy*; D012219:Rheumatology / Q000639:trends*