Submitted for Publication: August 1, 2014; final revision received January 3, 2015; accepted January 18, 2015.
Published Online: February 26, 2015. doi:10.1001/jamaoto.2015.95.
Study concept and design: Milder, Rizzi, Lautenbach, Gerber.
Acquisition, analysis, or interpretation of data: Milder, Morales, Ross, Gerber.
Drafting of the manuscript: Milder.
Critical revision of the manuscript for important intellectual content: All authors.
Statistical analysis: Milder, Morales, Lautenbach.
Administrative, technical, or material support: Ross, Lautenbach.
Study supervision: Rizzi, Gerber.
Conflict of Interest Disclosures: Dr Gerber receives grant funding from Pfizer for a project unrelated to this study. No other disclosures are reported.
Funding/Support: This study was supported by the National Institutes of Health grant No. K24 AI080942 to Dr Lautenbach. He was also supported in part by the Centers for Disease Control and Prevention Epicenters Program (U54-CK000163).
Previous Presentation: This study was a podium presentation at ID (Infectious Diseases) Week 2014; October 11, 2014; Philadelphia, Pennsylvania.