1. Munich Cancer Registry (MCR) of the Munich Cancer Centre (MCC); Department of Medical Informatics, Biometry and Epidemiology (IBE); Großhadern Clinic; Ludwig-Maximilians-University (LMU); Munich Germany
2. Cancer Centre Brandenburg; Onkologischer Schwerpunkt Frankfurt (Oder); Frankfurt (Oder) Germany
3. Regional Clinical Cancer Register Dresden (RKKRD); Dresden Germany