Schwartz, J., Lai, J., Lizaola, B., Kane, L., Weyland, P., Terrault, N., . . . Bikle, D. (2014). Variability in free 25(OH) vitamin D levels in clinical populations. Journal of Steroid Biochemistry and Molecular Biology, 144(Part A), 156-158. https://doi.org/10.1016/j.jsbmb.2013.11.006

Schwartz, J.B, J. Lai, B. Lizaola, L. Kane, P. Weyland, N.A Terrault, N. Stotland, and D. Bikle. "Variability in Free 25(OH) Vitamin D Levels in Clinical Populations." Journal of Steroid Biochemistry and Molecular Biology 144, no. Part A (2014): 156-158. https://doi.org/10.1016/j.jsbmb.2013.11.006.

Schwartz, J.B, et al. "Variability in Free 25(OH) Vitamin D Levels in Clinical Populations." Journal of Steroid Biochemistry and Molecular Biology, vol. 144, no. Part A, 2014, pp. 156-158, https://doi.org/10.1016/j.jsbmb.2013.11.006.