Accepted for Publication: November 14, 2014.
Published Online: March 2, 2015. doi:10.1001/jamainternmed.2014.8164.
Study concept and design: Mossello, Pieraccioli, Nesti, Baldasseroni, Biagini, Marchionni, Ungar.
Acquisition, analysis, or interpretation of data: Pieraccioli, Nesti, Bulgaresi, Lorenzi, Caleri, Tonon, Cavallini, Baroncini, Di Bari, Cantini, Ungar.
Drafting of the manuscript: Mossello, Pieraccioli.
Critical revision of the manuscript for important intellectual content: Nesti, Bulgaresi, Lorenzi, Caleri, Tonon, Cavallini, Baroncini, Di Bari, Baldasseroni, Cantini, Biagini, Marchionni, Ungar.
Statistical analysis: Mossello.
Obtained funding: Ungar.
Conflict of Interest Disclosures: None reported.
Funding/Support: The study was supported by Cassa di Risparmio di Pistoia and Pescia Foundation.
Role of the Funder/Sponsor: The funding source 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.