Author Contributions: Dr Kyrle had full access to all of the data in the study and takes responsibility for the integrity of the data and the accuracy of the data analysis.
Study concept and design: Eichinger, Kyrle.
Acquisition of data: Kollars.
Analysis and interpretation of data: Hron, Binder, Eichinger, Kyrle.
Drafting of the manuscript: Hron, Kyrle.
Critical revision of the manuscript for important intellectual content: Kollars, Binder, Eichinger.
Statistical analysis: Hron.
Obtained funding: Eichinger, Kyrle.
Administrative, technical, or material support: Kollars, Binder.
Study supervision: Eichinger.
Financial Disclosures: Dr Binder has reported that he is chief scientific officer for Technoclone GmbH, Vienna, Austria.
Funding/Support: This work was supported by grants from the Medizinisch-Wissenschaftlicher Fonds des Bürgermeisters der Bundeshauptstadt Wien and the Jubiläumsfond of the Austrian National Bank. The Technothrombin TGA assay kit and the respective equipment necessary for analysis were provided by Technoclone, Vienna, Austria.
Role of the Sponsor: The sponsors had no involvement in the design and conduct of the study; in the collection, management, analysis, and interpretation of the data; or in the preparation of the manuscript.