Graetz, Christian: Influence of psychological attachment patterns on periodontal disease : a pilot study with 310 compliant patients / Christian Graetz; Johannes C. Ehrenthal; Dana Senf; Katrin Semar; Wolfgang Herzog and Christof E. Dö… , 2013. - 8 S. In: Journal of clinical periodontology, ISSN 1600-051X. 40(2013), 12, Seite 1087-1094 DOI: 10.1111/jcpe.12159