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1. Effects of phone versus mail survey methods on the measurement of health-related quality of life and emotional and behavioural problems in adolescents.

   1. Erhart, Michael
   2. Wetzel, Ralf M
   3. Krügel, André
   4. Ravens-Sieberer, Ulrike

   2009 - Forschungsinformationssystem des UKE - frei zugänglich