Freeman, J., 		Sibley, P., 		Parker, N., 		Spears, R., 		Wilson, K., & 		Levy, H.
(2017).
 Standardization and Certification of the ADVIA Centaur Vitamin D Total Assay.
<em>Medical Research Archives, 5</em>(8).
Retrieved from <a href="https://esmed.org/MRA/mra/article/view/1458" target="_new">https://esmed.org/MRA/mra/article/view/1458</a>