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. Author manuscript; available in PMC: 2016 Dec 27.
Published in final edited form as: Eur J Clin Invest. 2015 Aug 7;45(9):955–963. doi: 10.1111/eci.12498

Figure 3.

Figure 3

Vitamin D deficiency. Chi-squared test or Fisher’s exact test was used to assess difference between groups. In subjects with airway limitation, there was no significant difference between groups.