Published Online: February 4, 2015. doi:10.1001/jamasurg.2014.3518.
Study concept and design: Mao, Pfeifer, Schlegel, Sedrakyan.
Acquisition, analysis, or interpretation of data: All authors.
Drafting of the manuscript: Mao, Sedrakyan.
Critical revision of the manuscript for important intellectual content: All authors.
Statistical analysis: Mao, Zheng, Sedrakyan.
Obtained funding: Sedrakyan.
Administrative, technical, or material support: Sedrakyan.
Study supervision: Schlegel, Sedrakyan.
Conflict of Interest Disclosures: Dr Sedrakyan founded the Medical Device Epidemiology Network’s Science and Infrastructure Center at Cornell University with FDA and institutional funding. No other disclosures are reported.