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Fig. 1 | BMC Medical Research Methodology

Fig. 1

From: Opportunities and obstacles in linking large health care registries: the primary secondary cancer care registry - breast cancer

Fig. 1

Title: Linkage procedure. DOB = date of birth, Nivel PCD=Nivel Primary Care Database, PC = postal code, PSCCR = Primary Secondary Cancer Care Registry, TTP = trusted third party. Ovals represent the original database, rectangles represent data files that are sent between the parties, rounded rectangles represent steps of the process

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