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. 2014 Nov 26;5:605. doi: 10.3389/fimmu.2014.00605

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Copyright © 2014 Tabolli, Giannantoni, Pulvirenti, La Marra, Granata, Milito and Quinti.

This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) or licensor are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms.

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Study flow chart. The number of patients analyzed at baseline (T0), after 1 year (T1), and after 6 years (T2). The number of patients who refused to continue the study and the number of patients who died during the study time is shown.