About the Authors

Jürgen Stausberg

stausberg@ekmed.de

Affiliation Institute for Medical Informatics, Biometry and Epidemiology, Faculty of Medicine, University Duisburg-Essen, Essen, Germany

Stefan Hagn

Affiliation Zuckerbacherweg 6, 84036 Landshut, Germany

Competing Interests

There is not any relationship from both authors with the company ID Information und Dokumentation im Gesundheitswesen GmbH & Co. KGaA in terms of “employment, consultancy, patents, products in development, marketed products, etc.”. There are not any restrictions concerning sharing of data/or materials due to the funding or any other relationship with that company. The funding does not alter the authors' adherence to PLOS ONE policies on sharing data and materials.

Author Contributions

Conceived and designed the experiments: JS SH. Performed the experiments: JS SH. Analyzed the data: JS SH. Contributed reagents/materials/analysis tools: JS SH. Wrote the paper: JS SH.