Towards Distributed Healthcare Systems - Virtual Data Pooling Between Cancer Registries as Backbone of Care and Research. - Arno Appenzeller; Sebastian Bartholomäus; Rüdiger Breitschwerdt; Carsten Claussen; Sandra Geisler; Tobias Hartz; Philipp Kachel; Erik Krempel; Sebastian Robert; Sylke Ruth Zeissig (AICCSA, 2021)