Comment on

• Vitamin D deficiency at 16 to 20 weeks' gestation is associated with impaired lung function and asthma at 6 years of age.

  Zosky GR, Hart PH, Whitehouse AJ, Kusel MM, Ang W, Foong RE, Chen L, Holt PG, Sly PD, Hall GL. Zosky GR, et al. Ann Am Thorac Soc. 2014 May;11(4):571-7. doi: 10.1513/AnnalsATS.201312-423OC. Ann Am Thorac Soc. 2014. PMID: 24601713
• Seasonality and total 25-hydroxyvitamin D levels as sources of potential misclassification of vitamin D deficiency.

  Perret JL, Lodge CJ. Perret JL, et al. Ann Am Thorac Soc. 2014 Oct;11(8):1336-7. doi: 10.1513/AnnalsATS.201406-282LE. Ann Am Thorac Soc. 2014. PMID: 25343205 No abstract available.