Following the publication of the original article [1], it was brought to our attention that citation number 20 had been truncated. At current the reference reads as: ‘20. Freire SM, Sundvall E, Karlsson D, Lambrix P. Performance of XML Databases for Epidemiological Queries in Archetype-Based EHRs. 2012:51–57.’ However, it should instead read as: ‘20. Freire SM, Sundvall E, Karlsson D, Lambrix P...
