%0 Journal Article %T De-identified linkage of data across separate registers: a proposal for improved protection of personal information in registry-based clinical research %A Christian Johansen %A Tomas Sn£¿ckerstr£¿m %J Archive of "Upsala Journal of Medical Sciences". %D 2019 %R 10.1080/03009734.2018.1527420 %K Data linkage %K data protection %K ethics %K registry research %U https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6450479/