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1. The mental health module (BELLA study) within the German Health Interview and Examination Survey of Children and Adolescents (KiGGS): study design and methods.

   1. Ravens-Sieberer, Ulrike
   2. Kurth, Bärbel-Maria
   3. Barkmann, Claus

   2008 - Forschungsinformationssystem des UKE