Vitamin D status, filaggrin genotype, and cardiovascular risk factors: a Mendelian randomization approach.
Skaaby T, Husemoen LL, Martinussen T, Thyssen JP, Melgaard M, Thuesen BH, Pisinger C, Jørgensen T, Johansen JD, Menné T, et al. PLoS One. 2013; 8(2):e57647. Epub 2013 Feb 27.