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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. 1 — Tear osmolarity studies were done as described in materials and methods. Data shown are the tear osmolarity in the right and left eye of the normal controls (HC) and the patients with keratoconjunctivitis sicca (KCS)