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. 2017 Mar 7;17:20. doi: 10.1186/s12886-017-0412-8

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© The Author(s). 2017

Open AccessThis article is distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution, and reproduction in any medium, provided you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made. 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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Fig. 2 — Antibodies to Ro, La, SP1, CA6 and PSP were determined by ELISA in the sera of patients with idiopathic dry eyes and Schirmer’s tests < 3 mm (27 patients), Schirmer’s tests < 6 mm (38 patients) or normal controls (35 patients). Data shown are the percent positive in each group for each of these autoantibodies