1. Internal deterministic record linkage using indirect identifiers for matching of same-patient hospital transfers and early readmissions after acute coronary syndrome in a nationwide hospital discharge database: a retrospective observational validation study. Issue 12 (30th December 2019) Authors: Rocha, Afonso; Azevedo, Luıs Filipe; Silva Cardoso, J C; Allison, Thomas G; Freitas, Alberto Journal: BMJ open Issue: Volume 9:Issue 12(2019) Page Start: Record Type: Journal Article View Content: Available online (eLD content is only available in our Reading Rooms) ↗