1. The Danish prescription registries;Gaist;Dan Med Bull,1997
2. Establishment of the nationwide Norwegian Prescription Database (NorPD) - new opportunities for research in pharmacoepidemiology in Norway;Furu;Norsk Epidemiologi,2008
3. The Finnish database on drug utilisation;Klaukka;Norwegian J Epidemiol,2001
4. The new Swedish Prescribed Drug Register - opportunities for pharmacoepidemiological research and experience from the first six months;Wettermark;Pharmacoepidemiol Drug Saf,2007
5. The Nordic countries as a cohort for pharmacoepidemiological research;Furu;Basic Clin Pharmacol Toxicol,2010