Cite
MLA Citation
Karen W Phinney et al.. “Baseline Assessment of 25-Hydroxyvitamin D Reference Material and Proficiency Testing/External Quality Assurance Material Commutability: A Vitamin D Standardization Program Study.” Journal of AOAC International, vol. 100, 2017, pp. 1288–1293. http://access.bl.uk/ark:/81055/vdc_100116598043.0x000025