Maintenance work on the ZORA database servers is scheduled for Thursday 25th July 2019 from 19:00-20:00. During this period ZORA and JDB will not be available. Thank you for your understanding.
Gölz, Lina; Knickenberg, Anna Christine; Keilig, Ludger; Reimann, Susanne; Papageorgiou, Spyridon N; Jäger, Andreas; Bourauel, Christoph (2016). Nickel ion concentrations in the saliva of patients treated with self-ligating fixed appliances: a prospective cohort study. Journal of Orofacial Orthopedics = Fortschritte Der Kieferorthopädie, 77(2):85-93.