Accepted for Publication: July 18, 2013.
Published Online: August 7, 2013. doi:10.1001/jamainternmed.2013.10559.
Study concept and design: Neltner, Krimsky, Bero.
Acquisition of data: Neltner, Alger.
Analysis and interpretation of data: Neltner, Alger, O’Reilly, Krimsky, Bero, Maffini.
Drafting of the manuscript: Neltner, Krimsky, Maffini.
Critical revision of the manuscript for important intellectual content: Neltner, Alger, O’Reilly, Krimsky, Bero, Maffini.
Administrative, technical, or material support: Neltner, Alger, O’Reilly, Krimsky, Maffini.
Study supervision: Neltner.
Conflict of Interest Disclosures: Mr Neltner and Mss Alger and Maffini are employees of The Pew Charitable Trusts. No other disclosures were reported.
Funding/Support: This work was supported by The Pew Charitable Trusts.
Additional Contributions: Erik D. Olson, JD, provided general guidance and reviewed the manuscript. Neesha R. Kulkarni, JD, provided analysis and writing assistance. Erin D. Bongard, MS, provided editing assistance. Liz Fuller-Wright was the consultant for checking facts.