Arbeitsgemeinschaft Deutscher Tumorzentren is the association in Germany founded in 1978.
According to PR-model, tumorzentren.de is ranked 2,970,816th in multilingual Wikipedia, in particular this website is ranked 439,889th in German Wikipedia.
The website is placed before tshipi.co.za and after hellevad-egvad-sogne.dk in the BestRef global ranking of the most important sources of Wikipedia.