Bridging Data Models in Health Care With a Novel Intermediate Query Format for Feasibility Queries: Mixed Methods Study

Lorenz Rosenau   ^{1 *} , MSc ;   Julian Gruendner   ^{2 *} , PhD ;   Alexander Kiel   ³ , BSc ;   Thomas Köhler   ^{4, 5, 6} ;   Bastian Schaffer   ² ;   Raphael W Majeed   ⁷ , PhD

¹ IT Center for Clinical Research, University of Lübeck, Lübeck, Germany

² Chair for Medical Informatics, Friedrich-Alexander-Universität Erlangen-Nürnberg, Erlangen, Germany

³ Leipzig Research Centre for Civilization Diseases, University of Leipzig, Leipzig, Germany

⁴ Federated Information Systems, German Cancer Research Center (DKFZ), Heidelberg, Germany

⁵ Complex Medical Informatics, Medical Faculty Mannheim, Heidel­berg University, Mannheim, Germany

⁶ Mannheim Institute for Intelligent Systems in Medicine, Medical Faculty Mannheim, Heidel­berg University, Mannheim, Germany

⁷ Institute for Medical Informatics, University Clinic Rheinisch-Westfälische Technische Hochschule Aachen, Aachen, Germany

*these authors contributed equally