Author Contributions: Dr Hunink 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: Smits, Dippel, Hunink.
Acquisition of data: Smits, Dippel, Haan, Dekker,
Vos, Kool, Nederkoorn, Hofman, Twijnstra, Tanghe.
Analysis and interpretation of data: Smits,
Drafting of the manuscript: Smits, Dippel,
Critical revision of the manuscript for important
intellectual content: Smits, Dippel, Haan, Dekker, Vos, Kool, Nederkoorn,
Hofman, Twijnstra, Tanghe, Hunink.
Statistical analysis: Smits, Dippel.
Obtained funding: Hunink.
Administrative, technical, or material support:
Smits, Dippel, Haan, Dekker, Vos, Kool, Nederkoorn, Hofman, Twijnstra, Tanghe,
Study supervision: Dippel, Hunink.
Financial Disclosures: None reported.
Funding/Support: This study was supported by
grant VAZ 01-104 from College voor Zorgverzekeringen.
Role of the Sponsor: The authors’ work
was independent of College voor Zorgverzekeringen. College voor Zorgverzekeringen
had no involvement in the study design, data collection and analysis, writing
of the manuscript, or in the decision to submit this article for publication.
Acknowledgment: We thank Jolanda Brauer, RN,
Department of Neurology at University Medical Center Nijmegen St. Radboud,
as well as Wibeke J. van Leeuwen, RN, Caroline H. van Bavel-van Hamburg, RN,
and Belinda Tara-Prins, RN, Department of Radiology at Erasmus Medical Center,
for their invaluable contribution to patient data collection. Their work was
funded solely by College voor Zorgverzekeringe and the medical centers involved
in the study.