Accepted for Publication: January 25, 2013.
Published Online: June 24, 2013. doi:10.1001/jamaneurol.2013.234.
Acquisition of data: Foerster, Callaghan, Petrou.
Analysis and interpretation of data: Foerster, Pomper, Edden, Mohamed, Welsh,
Drafting of the manuscript: Foerster.
Critical revision of the manuscript for important intellectual content: Pomper,
Callaghan, Petrou, Edden, Mohamed, Welsh, Carlos, Barker, Feldman.
Statistical analysis: Foerster.
Obtained funding: Foerster, Mohamed, Feldman.
Administrative, technical, and material support: Edden, Mohamed, Welsh.
Study supervision: Foerster, Pomper, Feldman.
Conflict of Interest Disclosure: Dr Carlos has
served as a consultant for Philips Healthcare.
Funding/Support: This study funded by the
A. Alfred Taubman Medical Research Institute.
Additional Contributions: We thank Andrea Smith, MS, for her assistance in the
coordination of the study.