@misc{27631, author = {Katrice Lippa and Mary Bedner}, title = {NIST/NIH Vitamin D Metabolites Quality Assurance Program Report of Participant Results: Summer 2012 Comparability Study (Exercise 6)}, year = {2013}, month = {2013-03-18}, publisher = {NIST Interagency/Internal Report (NISTIR), National Institute of Standards and Technology, Gaithersburg, MD}, doi = {https://doi.org/10.6028/NIST.IR.7895}, language = {en}, }