title: Correspondence (letter to the editor): Collective was not representative.
authors: Lutz
authors: L
authors: Altenhofen
authors: Bernd
authors: B
authors: Hagen
authors: Jens
authors: J
authors: Kretschmann
authors: Sabine
authors: S
authors: Groos
authors: Dominik
authors: D
authors: Graf von Stillfried
mesh_terms: D003924:Diabetes Mellitus, Type 2 / Q000191:economics* / Q000453:epidemiology*; D005260:Female; D017048:Health Care Costs / Q000706:statistics & numerical data*; D006760:Hospitalization / Q000191:economics*; D006801:Humans; D008297:Male