Avillach P., Coloma P. M., Gini R., Schuemie M., Mougin Fleur, Dufour Jean-Charles, Mazzaglia G., Giaquinto C., Fornari C., Herings R., Molokhia M., Pedersen L., Fourrier-Reglat A., Fieschi M., Sturkenboom M., van Der Lei J., Pariente A., Trifiro G.. Harmonization process for the identification of medical events in eight European healthcare databases: the experience from the EU-ADR project. Journal of the American Medical Informatics Association. 2013;20(1):184-192.