Liendgaard, U K M, við Streym, S, Jensen, L T, Mosekilde, L, Schoenmakers, I, Nigdikar, S & Rejnmark, L 2013, ' Increased plasma concentrations of vitamin D metabolites and vitamin D binding protein in women using hormonal contraceptives: a cross-sectional study : A cross-sectional study ', Nutrients, vol. 5, no. 9, 11, pp. 3470-80 . https://doi.org/10.3390/nu5093470
við Streym, S, Rejnmark, L, Mosekilde, L & Vestergaard, P 2011, ' Multiple Sclerosis and Chronic Diseases Is More Frequent in Young Adults Born in Summer Versus Winter-An Effect of Vitamin D Status? ', San Diego, United States, 16/09/2011-20/09/2011, .
Vestergaard, P & við Streym, S 2011, ' Medical treatment of primary, secondary, and tertiary hyperparathyroidism ', Current Drug Safety, vol. 6, no. 2, pp. 108-13 .