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. 2014 Nov 7;14:175. doi: 10.1186/1471-2466-14-175

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© Xu et al.; licensee BioMed Central Ltd. 2014

This article is published under license to BioMed Central Ltd. This is an Open Access article distributed under the terms of the Creative Commons Attribution License ( http://creativecommons.org/licenses/by/4.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly credited. The Creative Commons Public Domain Dedication waiver ( http://creativecommons.org/publicdomain/zero/1.0/) applies to the data made available in this article, unless otherwise stated.

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Kaplan-Meier survival curve for NSIP patients divided by clinical status at intital: SAD-NSIP, i- NSIP-AB + and i-NSIP-Ab- patients at the time of surgical lung biopsy. There is no significant difference (p = 0.511) among three groups (Log Rank = 1.342).