title: [The problem of rare diseases: a challenge for teaching, research and patient care].
authors.forename: Georg
authors.initials: G
authors.lastname: Ertl
authors.forename: Alfred
authors.initials: A
authors.lastname: Hildebrandt
mesh_terms: D035843:Biomedical Research; D019468:Disease Management; D006801:Humans; D035583:Rare Diseases / Q000628:therapy; D013663:Teaching