Submitted for Publication: March 27, 2014; final revision received August 11, 2014; accepted August 14, 2014.
Published Online: January 15, 2015. doi:10.1001/jamaoto.2014.3466.
Study concept and design: C.-C. Wang, Jiang, Lai, De Virgilio, Wu, Liu, Liang.
Acquisition, analysis, or interpretation of data: All authors.
Drafting of the manuscript: C.-C. Wang, C.-P. Wang.
Critical revision of the manuscript for important intellectual content: C.-C. Wang, Chang, Jiang, Lai, De Virgilio, Wu, Liu, Liang.
Statistical analysis: C.-C. Wang, De Virgilio.
Obtained funding: C.-C. Wang.
Administrative, technical, or material support: All authors.
Study supervision: C.-C. Wang, Chang.
Conflict of Interest Disclosures: None reported.
Funding/Support: This project was supported by research grants from Taichung Veterans General Hospital (TCVGH) (TCVGH-997001B and TCVGH-1007005C).
Role of the Funder/Sponsor: Taichung Veterans General Hospital 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.