1. Schematic presentation of enrichment through linkages of clinical Rheumatology register data to other national data sources within each of the five Nordic countries and various approaches to collaboration across the five Nordic countries.
Schematic presentation of enrichment through linkages of clinical Rheumatology register data to other national data sources within each of the five Nordic countries and various approaches to collaboration across the five Nordic countries.
Katerina Chatzidionysiou et al. RMD Open 2018;4:e000655
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