Oral health in German children, adolescents, adults and senior citizens in 2005. Schiffner, Ulrich Hoffmann, T Kerschbaum, T Micheelis, W 2009 - Forschungsinformationssystem des UKE
Effectiveness and efficiency of oral health education programs for children focusing on behavioral change Meyer-Lückel, H Schiffner, Ulrich 2009 - Forschungsinformationssystem des UKE