title: [Rare diseases--acquaintance and uncertainty].
authors.forename: Monika
authors.initials: M
authors.lastname: Lelgemann
authors.forename: Robert
authors.initials: R
authors.lastname: Francke
mesh_terms: D017668:Age of Onset; D002648:Child; D002908:Chronic Disease; D006801:Humans; D011785:Quality Assurance, Health Care; D035583:Rare Diseases / Q000628:therapy*; D035501:Uncertainty