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APA Citation
Heiskanen, J., Martikainen, J., Miettinen, H., Hippeläinen, M., Roine, R. P., Hartikainen, J., & Tolppanen, A. (2016). the coverage of elective revascularisation procedure codes in the National Finnish Hospital Discharge Register. Annals of medicine, 48, 552–558. http://access.bl.uk/ark:/81055/vdc_100039134751.0x00004a