Accepted for Publication: October 25, 2011.
Published Online: March 5, 2012. doi:10.1001/archneurol.2011.2874
Author Contributions:Study concept and design: Jung, Zarow, Zheng, and Chui. Acquisition of data: Mack, Zheng, Vinters, Ellis, and Lyness. Analysis and interpretation of data: Jung, Mack, Zheng, and Chui. Drafting of the manuscript: Jung. Critical revision of the manuscript for important intellectual content: Jung, Zarow, Mack, Zheng, Vinters, Ellis, Lyness, and Chui. Statistical analysis: Jung, Mack, and Zheng. Obtained funding: Chui. Administrative, technical, and material support: Mack, Vinters, Ellis, Lyness, and Chui. Study supervision: Zarow and Vinters.
Financial Disclosure: None reported.
Funding/Support: This work was supported by grants P01AG12435, P50AG05142, and P50AG16570 from the National Institute on Aging.