The association between vitamin D status and the rate of exacerbations requiring oral corticosteroids in preschool children with recurrent wheezing.
Beigelman A, Zeiger RS, Mauger D, Strunk RC, Jackson DJ, Martinez FD, Morgan WJ, Covar R, Szefler SJ, Taussig LM, Bacharier LB. The association between vitamin D status and the rate of exacerbations requiring oral corticosteroids in preschool children with recurrent wheezing. J Allergy Clin Immunol. 2014 May; 133(5):1489-92, 1492.e1-3.