Submitted for Publication: March 13, 2014; final revision received April 29, 2014; accepted May 29, 2014.
Published Online: July 24, 2014. doi:10.1001/jamaoto.2014.1258.
Study concept and design: Tseng, C. Lin, Y.-S. Lin.
Acquisition, analysis, or interpretation of data: All authors.
Drafting of the manuscript: All authors.
Critical revision of the manuscript for important intellectual content: Tseng, C. Lin, Y.-S. Lin.
Statistical analysis: Tseng, Weng.
Obtained funding: C. Lin, Y.-S. Lin.
Administrative, technical, or material support: Tseng, C. Lin, Y.-S. Lin.
Study supervision: Tseng, C. Lin, Y.-S. Lin.
Conflict of Interest Disclosures: None reported.
Funding/Support: This study was supported by grant CMH10111-E03 from the Taipei Medical University and Chi Mei Medical Center Research Fund.
Role of the Sponsor: The funding sources had no role in the design and conduct of the study; collection, management, analysis, and interpretation of the data; preparation, review, or approval of the manuscript; and decision to submit the manuscript for publication.