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. 2018 May 8;18:67. doi: 10.1186/s12890-018-0640-6

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© The Author(s). 2018

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 — Box and whisker plot showing the distribution of serum vitamin D concentrations by PTB status. Median serum 25(OH) D concentrations were significantly higher in HIV⁺/PTB⁺ group compared to HIV⁺/PTB⁻ group (p = 0.0003). Key: HIV+ = Human Immunodeficiency Virus positive, PTB+ = Pulmonary Tuberculosis positive, PTB- = Pulmonary Tuberculosis negative